| Lehigh Valley International (ABE) | Allentown | PA | Williamsport Regional to Lehigh Valley International |
| Nantucket Memorial (ACK) | Nantucket | MA | Williamsport Regional to Nantucket Memorial |
| Atlantic City International (ACY) | Atlantic City | NJ | Williamsport Regional to Atlantic City International |
| Lenawee County (ADG) | Adrian | MI | Williamsport Regional to Lenawee County |
| Jaffrey Silver Ranch (AFN) | Jaffrey | NH | Williamsport Regional to Jaffrey Silver Ranch |
| Allegheny County (AGC) | Pittsburgh | PA | Williamsport Regional to Allegheny County |
| Akron Fulton International (AKC) | Akron | OH | Williamsport Regional to Akron Fulton International |
| Albany International (ALB) | Albany | NY | Williamsport Regional to Albany International |
| Lee (ANP) | Annapolis | MD | Williamsport Regional to Lee |
| Lima Allen County (AOH) | Lima | OH | Williamsport Regional to Lima Allen County |
| Altoona/Blair County (AOO) | Altoona | PA | Williamsport Regional to Altoona/Blair County |
| Ann Arbor Municipal (ARB) | Ann Arbor | MI | Williamsport Regional to Ann Arbor Municipal |
| Watertown International (ART) | Watertown | NY | Williamsport Regional to Watertown International |
| Nashua-Boire Field (ASH) | Nashua | NH | Williamsport Regional to Nashua-Boire Field |
| Gordon K Bush Ohio University (ATO) | Athens/Albany | OH | Williamsport Regional to Gordon K Bush Ohio University |
| Wilkes-Barre/Scranton International (AVP) | Scranton | PA | Williamsport Regional to Wilkes-Barre/Scranton International |
| Auglaize County Neil Armstrong (AXV) | Wapakoneta | OH | Williamsport Regional to Auglaize County Neil Armstrong |
| Barnes Municipal (BAF) | Westfield | MA | Williamsport Regional to Barnes Municipal |
| Wings Field (BBX) | Philadelphia | PA | Williamsport Regional to Wings Field |
| Virginia Tech Montgomery Executive (BCB) | Blacksburg | VA | Williamsport Regional to Virginia Tech Montgomery Executive |
| Bradley International (BDL) | Windsor Locks | CT | Williamsport Regional to Bradley International |
| Igor I Sikorsky Memorial (BDR) | Bridgeport | CT | Williamsport Regional to Igor I Sikorsky Memorial |
| Laurence G Hanscom Field (BED) | Bedford | MA | Williamsport Regional to Laurence G Hanscom Field |
| Bradford Regional (BFD) | Bradford | PA | Williamsport Regional to Bradford Regional |
| Beaver County (BFP) | Beaver Falls | PA | Williamsport Regional to Beaver County |
| Greater Binghamton Edwin A Link Field (BGM) | Binghamton | NY | Williamsport Regional to Greater Binghamton Edwin A Link Field |
| Block Island State (BID) | Block Island | RI | Williamsport Regional to Block Island State |
| Wayne County (BJJ) | Wooster | OH | Williamsport Regional to Wayne County |
| Burke Lakefront (BKL) | Cleveland | OH | Williamsport Regional to Burke Lakefront |
| Allen C Perkinson Blackstone Army Air Field (BKT) | Blackstone | VA | Williamsport Regional to Allen C Perkinson Blackstone Army Air Field |
| Raleigh County Memorial (BKW) | Beckley | WV | Williamsport Regional to Raleigh County Memorial |
| Mercer County (BLF) | Bluefield | WV | Williamsport Regional to Mercer County |
| Monmouth Executive (BLM) | Belmar | NJ | Williamsport Regional to Monmouth Executive |
| Berlin Regional (BML) | Berlin | NH | Williamsport Regional to Berlin Regional |
| Boston Logan International (BOS) | Boston | MA | Williamsport Regional to Boston Logan International |
| Butler County/K W Scholter Field (BTP) | Butler | PA | Williamsport Regional to Butler County/K W Scholter Field |
| Burlington International (BTV) | Burlington | VT | Williamsport Regional to Burlington International |
| Buffalo Niagara International (BUF) | Buffalo | NY | Williamsport Regional to Buffalo Niagara International |
| Beverly Regional (BVY) | Beverly | MA | Williamsport Regional to Beverly Regional |
| Baltimore/Washington Intl Thurgood Marshall (BWI) | Baltimore | MD | Williamsport Regional to Baltimore/Washington Intl Thurgood Marshall |
| Akron/Canton Regional (CAK) | Akron | OH | Williamsport Regional to Akron/Canton Regional |
| Greater Cumberland Regional (CBE) | Cumberland | MD | Williamsport Regional to Greater Cumberland Regional |
| Essex County (CDW) | Caldwell | NJ | Williamsport Regional to Essex County |
| Westover Arb/Westover Metropolitan (CEF) | Chicopee | MA | Williamsport Regional to Westover Arb/Westover Metropolitan |
| Cambridge-Dorchester Regional (CGE) | Cambridge | MD | Williamsport Regional to Cambridge-Dorchester Regional |
| Cuyahoga County (CGF) | Cleveland | OH | Williamsport Regional to Cuyahoga County |
| College Park Airport (CGS) | College Park | MD | Williamsport Regional to College Park Airport |
| Charlottesville Albemarle (CHO) | Charlottesville | VA | Williamsport Regional to Charlottesville Albemarle |
| North Central West Virginia (CKB) | Clarksburg | WV | Williamsport Regional to North Central West Virginia |
| Cleveland/Hopkins International (CLE) | Cleveland | OH | Williamsport Regional to Cleveland/Hopkins International |
| John Glenn International (CMH) | Columbus | OH | Williamsport Regional to John Glenn International |
| Claremont Municipal (CNH) | Claremont | NH | Williamsport Regional to Claremont Municipal |
| Concord Municipal (CON) | Concord | NH | Williamsport Regional to Concord Municipal |
| Yeager (CRW) | Charleston | WV | Williamsport Regional to Yeager |
| Chester County G O Carlson (CTH) | Coatesville | PA | Williamsport Regional to Chester County G O Carlson |
| Cortland County-Chase Field (CTX) | Cortland | NY | Williamsport Regional to Cortland County-Chase Field |
| Burlington Executive (CZB) | Burlington | ON | Williamsport Regional to Burlington Executive |
| Danville Regional (DAN) | Danville | VA | Williamsport Regional to Danville Regional |
| Dayton International James M Cox (DAY) | Dayton | OH | Williamsport Regional to Dayton International James M Cox |
| Coleman A Young Municipal (DET) | Detroit | MI | Williamsport Regional to Coleman A Young Municipal |
| Defiance Memorial (DFI) | Defiance | OH | Williamsport Regional to Defiance Memorial |
| Chautauqua County/Dunkirk (DKK) | Dunkirk | NY | Williamsport Regional to Chautauqua County/Dunkirk |
| Dover AFB (DOV) | Dover | DE | Williamsport Regional to Dover AFB |
| Dansville Municipal (DSV) | Dansville | NY | Williamsport Regional to Dansville Municipal |
| Detroit Metro Wayne County (DTW) | Detroit | MI | Williamsport Regional to Detroit Metro Wayne County |
| Dunnville (DU9) | Dunnville | ON | Williamsport Regional to Dunnville |
| Pine Island Airport (DUF) | Corolla | NC | Williamsport Regional to Pine Island Airport |
| Dubois Regional (DUJ) | DuBois | PA | Williamsport Regional to Dubois Regional |
| Danbury Municipal (DXR) | Danbury | CT | Williamsport Regional to Danbury Municipal |
| Doylestown (DYL) | Doylestown | PA | Williamsport Regional to Doylestown |
| Iosco County (ECA) | East Tawas | MI | Williamsport Regional to Iosco County |
| Elizabeth City Regional & Coast Guard Station (ECG) | Elizabeth City | NC | Williamsport Regional to Elizabeth City Regional & Coast Guard Station |
| Northeastern Regional (EDE) | Edenton | NC | Williamsport Regional to Northeastern Regional |
| Dilliant-Hopkins (EEN) | Keene | NH | Williamsport Regional to Dilliant-Hopkins |
| Northeast Kingdom International (EFK) | Newport | VT | Williamsport Regional to Northeast Kingdom International |
| Elkins/Randolph County (EKN) | Elkins | WV | Williamsport Regional to Elkins/Randolph County |
| Elmira/Corning Regional (ELM) | Elmira | NY | Williamsport Regional to Elmira/Corning Regional |
| Wellsville Municipal/Tarantine Field (ELZ) | Wellsville | NY | Williamsport Regional to Wellsville Municipal/Tarantine Field |
| Erie International/Tom Ridge Field (ERI) | Erie | PA | Williamsport Regional to Erie International/Tom Ridge Field |
| Easton/Newnam Field (ESN) | Easton | MD | Williamsport Regional to Easton/Newnam Field |
| Stroudsburg-Pocono (ESP) | East Stroudsburg | PA | Williamsport Regional to Stroudsburg-Pocono |
| New Bedford Regional (EWB) | New Bedford | MA | Williamsport Regional to New Bedford Regional |
| Newark Liberty International (EWR) | Newark | NJ | Williamsport Regional to Newark Liberty International |
| Frederick Municipal (FDK) | Frederick | MD | Williamsport Regional to Frederick Municipal |
| Findlay (FDY) | Findlay | OH | Williamsport Regional to Findlay |
| First Flight (FFA) | Kill Devil Hills | NC | Williamsport Regional to First Flight |
| Elizabeth Field Airport (FID) | Fishers Island | NY | Williamsport Regional to Elizabeth Field Airport |
| Venango Regional (FKL) | Franklin | PA | Williamsport Regional to Venango Regional |
| Franklin Municipal-John Beverly Rose (FKN) | Franklin | VA | Williamsport Regional to Franklin Municipal-John Beverly Rose |
| Fort Meade (Odenton) Tipton (FME) | Fort Meade Odenton | MD | Williamsport Regional to Fort Meade (Odenton) Tipton |
| Bishop International (FNT) | Flint | MI | Williamsport Regional to Bishop International |
| Francis S Gabreski (FOK) | Westhampton Beach | NY | Williamsport Regional to Francis S Gabreski |
| Republic Long Island (FRG) | Farmingdale | NY | Williamsport Regional to Republic Long Island |
| Front Royal-Warren County (FRR) | Front Royal | VA | Williamsport Regional to Front Royal-Warren County |
| Eastern Slopes Regional (FRY) | Fryeburg | ME | Williamsport Regional to Eastern Slopes Regional |
| Montgomery County Airpark (GAI) | Gaithersburg | MD | Williamsport Regional to Montgomery County Airpark |
| Gardner Municipal (GDM) | Gardner | MA | Williamsport Regional to Gardner Municipal |
| Delaware Coastal (GED) | Georgetown | DE | Williamsport Regional to Delaware Coastal |
| Floyd Bennett Memorial (GFL) | Glens Falls | NY | Williamsport Regional to Floyd Bennett Memorial |
| Groton New London (GON) | Groton New London | CT | Williamsport Regional to Groton New London |
| Galion Municipal (GQQ) | Galion | OH | Williamsport Regional to Galion Municipal |
| Piedmont Triad International (GSO) | Greensboro | NC | Williamsport Regional to Piedmont Triad International |
| Gettysburg Regional (GTY) | Gettysburg | PA | Williamsport Regional to Gettysburg Regional |
| Gordonsville Municipal Airport (GVE) | Gordonsville | VA | Williamsport Regional to Gordonsville Municipal Airport |
| Capital City Harrisburg (HAR) | Harrisburg | PA | Williamsport Regional to Capital City Harrisburg |
| Columbia County (HCC) | Hudson | NY | Williamsport Regional to Columbia County |
| Hartford/Brainard (HFD) | Hartford | CT | Williamsport Regional to Hartford/Brainard |
| Richard A Henson Field/Hagerstown Regional (HGR) | Hagerstown | MD | Williamsport Regional to Richard A Henson Field/Hagerstown Regional |
| Mount Washington Regional (HIE) | Whitefield | NH | Williamsport Regional to Mount Washington Regional |
| Wheeling Ohio County (HLG) | Wheeling | WV | Williamsport Regional to Wheeling Ohio County |
| Westchester County (HPN) | White Plains | NY | Williamsport Regional to Westchester County |
| Ingalls Field (HSP) | Hot Springs | VA | Williamsport Regional to Ingalls Field |
| East Hampton (HTO) | East Hampton | NY | Williamsport Regional to East Hampton |
| Tri-State Milton J Ferguson Field (HTS) | Huntington | WV | Williamsport Regional to Tri-State Milton J Ferguson Field |
| Lawrence County Airpark (HTW) | Chesapeake | OH | Williamsport Regional to Lawrence County Airpark |
| Tweed/New Haven (HVN) | New Haven | CT | Williamsport Regional to Tweed/New Haven |
| Barnstable Municipal/Boardman-Polando Field (HYA) | Hyannis | MA | Williamsport Regional to Barnstable Municipal/Boardman-Polando Field |
| Hazleton Regional (HZL) | Hazleton | PA | Williamsport Regional to Hazleton Regional |
| Washington Dulles International (IAD) | Washington | VA | Williamsport Regional to Washington Dulles International |
| Niagara Falls International (IAG) | Niagara Falls | NY | Williamsport Regional to Niagara Falls International |
| Indiana County/Jimmy Stewart Field (IDI) | Indiana | PA | Williamsport Regional to Indiana County/Jimmy Stewart Field |
| Wilmington/New Castle (ILG) | Wilmington | DE | Williamsport Regional to Wilmington/New Castle |
| Wilmington Airpark (ILN) | Wilmington | OH | Williamsport Regional to Wilmington Airpark |
| Smith Reynolds (INT) | Winston-Salem | NC | Williamsport Regional to Smith Reynolds |
| Long Island Macarthur (ISP) | Islip | NY | Williamsport Regional to Long Island Macarthur |
| Ithaca Tompkins Regional (ITH) | Ithaca | NY | Williamsport Regional to Ithaca Tompkins Regional |
| New York/John F Kennedy International (JFK) | New York | NY | Williamsport Regional to New York/John F Kennedy International |
| Northeast Ohio Regional (JFN) | Ashtabula | OH | Williamsport Regional to Northeast Ohio Regional |
| Chautauqua County/Jamestown (JHW) | Jamestown | NY | Williamsport Regional to Chautauqua County/Jamestown |
| John Murtha Johnstown/Cambria County (JST) | Johnstown | PA | Williamsport Regional to John Murtha Johnstown/Cambria County |
| Central Jersey Regional (JVI) | Manville | NJ | Williamsport Regional to Central Jersey Regional |
| Jackson County/Reynolds Field (JXN) | Jackson | MI | Williamsport Regional to Jackson County/Reynolds Field |
| Arnold Palmer Regional (LBE) | Latrobe | PA | Williamsport Regional to Arnold Palmer Regional |
| Laconia Municipal (LCI) | Laconia | NH | Williamsport Regional to Laconia Municipal |
| Rickenbacker International (LCK) | Columbus | OH | Williamsport Regional to Rickenbacker International |
| Linden (LDJ) | Linden | NJ | Williamsport Regional to Linden |
| Lebanon Municipal (LEB) | Lebanon | NH | Williamsport Regional to Lebanon Municipal |
| Auburn/Lewiston Municipal (LEW) | Auburn/Lewiston | ME | Williamsport Regional to Auburn/Lewiston Municipal |
| Triangle North Executive (LFN) | Louisburg | NC | Williamsport Regional to Triangle North Executive |
| La Guardia (LGA) | New York | NY | Williamsport Regional to La Guardia |
| Lake Placid (LKP) | Lake Placid | NY | Williamsport Regional to Lake Placid |
| Caledonia County (LLX) | Lyndonville | VT | Williamsport Regional to Caledonia County |
| South Jersey Regional (LLY) | Mount Holly | NJ | Williamsport Regional to South Jersey Regional |
| Willoughby Lost Nation Municipal (LNN) | Willoughby | OH | Williamsport Regional to Willoughby Lost Nation Municipal |
| Lancaster (LNS) | Lancaster | PA | Williamsport Regional to Lancaster |
| Louisa County/Freeman Field (LOW) | Louisa | VA | Williamsport Regional to Louisa County/Freeman Field |
| St. Mary's County Regional (LTW) | Leonardtown | MD | Williamsport Regional to St. Mary's County Regional |
| Lawrenceville/Brunswick Municipal (LVL) | Lawrenceville | VA | Williamsport Regional to Lawrenceville/Brunswick Municipal |
| Greenbrier Valley (LWB) | Lewisburg | WV | Williamsport Regional to Greenbrier Valley |
| Lawrence Municipal (LWM) | Lawrence | MA | Williamsport Regional to Lawrence Municipal |
| Lynchburg Regional/Preston Glenn Field (LYH) | Lynchburg | VA | Williamsport Regional to Lynchburg Regional/Preston Glenn Field |
| Mbs International (MBS) | Saginaw | MI | Williamsport Regional to Mbs International |
| Harrisburg International (MDT) | Harrisburg | PA | Williamsport Regional to Harrisburg International |
| Port Meadville (MEJ) | Meadville | PA | Williamsport Regional to Port Meadville |
| Dare County Regional (MEO) | Manteo | NC | Williamsport Regional to Dare County Regional |
| Mansfield Lahm Regional (MFD) | Mansfield | OH | Williamsport Regional to Mansfield Lahm Regional |
| Accomack County (MFV) | Melfa | VA | Williamsport Regional to Accomack County |
| Orange County (MGJ) | Montgomery | NY | Williamsport Regional to Orange County |
| Morgantown Municipal Walter L Bill Hart Field (MGW) | Morgantown | WV | Williamsport Regional to Morgantown Municipal Walter L Bill Hart Field |
| Dayton-Wright Brothers (MGY) | Dayton | OH | Williamsport Regional to Dayton-Wright Brothers |
| Manchester (MHT) | Manchester | NH | Williamsport Regional to Manchester |
| Millville Municipal (MIV) | Millville | NJ | Williamsport Regional to Millville Municipal |
| Ocean County (MJX) | Toms River | NJ | Williamsport Regional to Ocean County |
| Minute Man Air Field (MMN) | Stow | MA | Williamsport Regional to Minute Man Air Field |
| Morristown Municipal (MMU) | Morristown | NJ | Williamsport Regional to Morristown Municipal |
| Marion Municipal (MNN) | Marion | OH | Williamsport Regional to Marion Municipal |
| Manassas Regional/Harry P Davis Field (MNZ) | Manassas | VA | Williamsport Regional to Manassas Regional/Harry P Davis Field |
| Pocono Mountains Municipal (MPO) | Mount Pocono | PA | Williamsport Regional to Pocono Mountains Municipal |
| Edward F Knapp State (MPV) | Barre-Montpelier | VT | Williamsport Regional to Edward F Knapp State |
| Eastern West Virginia Regional/Shepherd Field (MRB) | Martinsburg | WV | Williamsport Regional to Eastern West Virginia Regional/Shepherd Field |
| Massena International/Richards Field (MSS) | Massena | NY | Williamsport Regional to Massena International/Richards Field |
| Sullivan County International (MSV) | Monticello | NY | Williamsport Regional to Sullivan County International |
| Martin State (MTN) | Baltimore | MD | Williamsport Regional to Martin State |
| Montauk (MTP) | Montauk | NY | Williamsport Regional to Montauk |
| Morrisville-Stowe State (MVL) | Morrisville | VT | Williamsport Regional to Morrisville-Stowe State |
| Martha's Vineyard (MVY) | Vineyard Haven | MA | Williamsport Regional to Martha's Vineyard |
| Quonset State (NCO) | North Kingstown | RI | Williamsport Regional to Quonset State |
| Haliburton/Stanhope Muni (ND4) | Haliburton | | Williamsport Regional to Haliburton/Stanhope Muni |
| Lindsay (NF4) | Lindsay | ON | Williamsport Regional to Lindsay |
| Brunswick Executive (NHZ) | Brunswick | ME | Williamsport Regional to Brunswick Executive |
| Arnprior Municipal (NP3) | Arnprior | ON | Williamsport Regional to Arnprior Municipal |
| Newport State (NPT) | Newport | RI | Williamsport Regional to Newport State |
| Niagara Central (NQ3) | Welland | ON | Williamsport Regional to Niagara Central |
| Tobermory (NR4) | Tobermory | ON | Williamsport Regional to Tobermory |
| Toronto/Markham (NU8) | Markham | | Williamsport Regional to Toronto/Markham |
| Parlin Field (NWH) | Newport | NH | Williamsport Regional to Parlin Field |
| Collingwood (NY3) | Collingwood | ON | Williamsport Regional to Collingwood |
| Ocean City Municipal (OCE) | Ocean City | MD | Williamsport Regional to Ocean City Municipal |
| Washington-Warren (OCW) | Washington | NC | Williamsport Regional to Washington-Warren |
| Garrett County (ODM) | Oakland | MD | Williamsport Regional to Garrett County |
| Ogdensburg International (OGS) | Ogdensburg | NY | Williamsport Regional to Ogdensburg International |
| Lt Warren Eaton (OIC) | Norwich | NY | Williamsport Regional to Lt Warren Eaton |
| Cattaraugus County-Olean Municipal (OLE) | Olean | NY | Williamsport Regional to Cattaraugus County-Olean Municipal |
| Oneonta Municipal (ONH) | Oneonta | NY | Williamsport Regional to Oneonta Municipal |
| Norfolk International (ORF) | Norfolk | VA | Williamsport Regional to Norfolk International |
| Worcester Regional (ORH) | Worcester | MA | Williamsport Regional to Worcester Regional |
| Oscoda-Wurtsmith (OSC) | Oscoda | MI | Williamsport Regional to Oscoda-Wurtsmith |
| Ohio State University (OSU) | Columbus | OH | Williamsport Regional to Ohio State University |
| Norwood Memorial (OWD) | Norwood | MA | Williamsport Regional to Norwood Memorial |
| Waterbury/Oxford (OXC) | Oxford | CT | Williamsport Regional to Waterbury/Oxford |
| Plattsburgh International (PBG) | Plattsburgh | NY | Williamsport Regional to Plattsburgh International |
| Princeton (PCT) | Princeton | NJ | Williamsport Regional to Princeton |
| Cambridge/Reid's Field (PE4) | Cambridge | ON | Williamsport Regional to Cambridge/Reid's Field |
| Grant County (PGC) | Petersburg | WV | Williamsport Regional to Grant County |
| Pitt-Greenville (PGV) | Greenville | NC | Williamsport Regional to Pitt-Greenville |
| Harry Clever Field (PHD) | New Philadelphia | OH | Williamsport Regional to Harry Clever Field |
| Newport News/Williamsburg Intl/Patrick Henry Field (PHF) | Newport News | VA | Williamsport Regional to Newport News/Williamsburg Intl/Patrick Henry Field |
| Philadelphia International (PHL) | Philadelphia | PA | Williamsport Regional to Philadelphia International |
| St Clair County International (PHN) | Port Huron | MI | Williamsport Regional to St Clair County International |
| Pittsburgh International (PIT) | Pittsburgh | PA | Williamsport Regional to Pittsburgh International |
| Mid Ohio Valley Regional (PKB) | Parkersburg | WV | Williamsport Regional to Mid Ohio Valley Regional |
| Greater Portsmouth Regional (PMH) | Portsmouth | OH | Williamsport Regional to Greater Portsmouth Regional |
| Northeast Philadelphia (PNE) | Philadelphia | PA | Williamsport Regional to Northeast Philadelphia |
| Hudson Valley Regional (POU) | Poughkeepsie | NY | Williamsport Regional to Hudson Valley Regional |
| Wingham/Richard W Levan (PR7) | Wingham | ON | Williamsport Regional to Wingham/Richard W Levan |
| Mid-State (PSB) | Philipsburg | PA | Williamsport Regional to Mid-State |
| Pittsfield Municipal (PSF) | Pittsfield | MA | Williamsport Regional to Pittsfield Municipal |
| New River Valley (PSK) | Dublin | VA | Williamsport Regional to New River Valley |
| Portsmouth International at Pease (PSM) | Portsmouth | NH | Williamsport Regional to Portsmouth International at Pease |
| Killarney (PT2) | Killarney | ON | Williamsport Regional to Killarney |
| Dinwiddie County (PTB) | Petersburg | VA | Williamsport Regional to Dinwiddie County |
| Oakland County International (PTK) | Pontiac | MI | Williamsport Regional to Oakland County International |
| Heritage Field (PTW) | Pottstown | PA | Williamsport Regional to Heritage Field |
| Tyendinaga/Mohawk (PU6) | Tyendinaga | ON | Williamsport Regional to Tyendinaga/Mohawk |
| Provincetown Municipal (PVC) | Provincetown | MA | Williamsport Regional to Provincetown Municipal |
| Theodore Francis Green International (PVD) | Providence | RI | Williamsport Regional to Theodore Francis Green International |
| Portland International Jetport (PWM) | Portland | ME | Williamsport Regional to Portland International Jetport |
| Plymouth Municipal (PYM) | Plymouth | MA | Williamsport Regional to Plymouth Municipal |
| Reading Regional/Carl A Spaatz Field (RDG) | Reading | PA | Williamsport Regional to Reading Regional/Carl A Spaatz Field |
| Raleigh-Durham International (RDU) | Raleigh/Durham | NC | Williamsport Regional to Raleigh-Durham International |
| Mifflin County (RED) | Reedsville | PA | Williamsport Regional to Mifflin County |
| Richmond International (RIC) | Richmond | VA | Williamsport Regional to Richmond International |
| Griffiss International (RME) | Rome | NY | Williamsport Regional to Griffiss International |
| Roanoke Regional/Woodrum Field (ROA) | Roanoke | VA | Williamsport Regional to Roanoke Regional/Woodrum Field |
| Greater Rochester International (ROC) | Rochester | NY | Williamsport Regional to Greater Rochester International |
| Rutland Southern Vermont Regional (RUT) | Rutland | VT | Williamsport Regional to Rutland Southern Vermont Regional |
| Rocky Mount - Wilson (RWI) | Rocky Mount | NC | Williamsport Regional to Rocky Mount - Wilson |
| Salisbury Ocean City/Wicomico Regional (SBY) | Salisbury | MD | Williamsport Regional to Salisbury Ocean City/Wicomico Regional |
| University Park (SCE) | State College | PA | Williamsport Regional to University Park |
| Schenectady County (SCH) | Schenectady | NY | Williamsport Regional to Schenectady County |
| Mont-Laurier (SD4) | Mont-Laurier | QC | Williamsport Regional to Mont-Laurier |
| Lachute (SE4) | Lachute | QC | Williamsport Regional to Lachute |
| Sanford Seacoast Regional (SFM) | Sanford | ME | Williamsport Regional to Sanford Seacoast Regional |
| North Central State (SFZ) | Pawtucket | RI | Williamsport Regional to North Central State |
| Springfield/Beckley Municipal (SGH) | Springfield | OH | Williamsport Regional to Springfield/Beckley Municipal |
| Shenandoah Valley Regional (SHD) | Staunton | VA | Williamsport Regional to Shenandoah Valley Regional |
| Mascouche (SK3) | Montreal | QC | Williamsport Regional to Mascouche |
| Adirondack Regional (SLK) | Saranac Lake | NY | Williamsport Regional to Adirondack Regional |
| Les Cedres (SS3) | Montreal | QC | Williamsport Regional to Les Cedres |
| St Marys Municipal (STQ) | St Marys | PA | Williamsport Regional to St Marys Municipal |
| Stewart International (SWF) | Newburgh | NY | Williamsport Regional to Stewart International |
| Sidney Municipal (SXY) | Sidney | NY | Williamsport Regional to Sidney Municipal |
| Sorel (SY3) | Sorel | QC | Williamsport Regional to Sorel |
| Syracuse Hancock International (SYR) | Syracuse | NY | Williamsport Regional to Syracuse Hancock International |
| Toledo Executive (TDZ) | Toledo | OH | Williamsport Regional to Toledo Executive |
| Teterboro (TEB) | Teterboro | NJ | Williamsport Regional to Teterboro |
| York (THV) | York | PA | Williamsport Regional to York |
| Toledo Express (TOL) | Toledo | OH | Williamsport Regional to Toledo Express |
| Trenton Mercer (TTN) | Trenton | NJ | Williamsport Regional to Trenton Mercer |
| Tuscola Area (TZC) | Caro | MI | Williamsport Regional to Tuscola Area |
| Quakertown (UKT) | Quakertown | PA | Williamsport Regional to Quakertown |
| Hartness State (Springfield) (VSF) | Springfield | VT | Williamsport Regional to Hartness State (Springfield) |
| Greene County (WAY) | Waynesburg | PA | Williamsport Regional to Greene County |
| Wilkes-Barre Wyoming Valley (WBW) | Wilkes-Barre | PA | Williamsport Regional to Wilkes-Barre Wyoming Valley |
| Winchester Regional (WGO) | Winchester | VA | Williamsport Regional to Winchester Regional |
| Washington County (WSG) | Washington | PA | Williamsport Regional to Washington County |
| Brookhaven (WSH) | Shirley | NY | Williamsport Regional to Brookhaven |
| Westerly State (WST) | Westerly | RI | Williamsport Regional to Westerly State |
| Wildwood/Cape May County (WWD) | Wildwood | NJ | Williamsport Regional to Wildwood/Cape May County |
| Brockville Regional Tackaberry (XBR) | Brockville | ON | Williamsport Regional to Brockville Regional Tackaberry |
| Drummondville (XDM) | Drummondville | QC | Williamsport Regional to Drummondville |
| Brantford Municipal (XFV) | Brantford | ON | Williamsport Regional to Brantford Municipal |
| Grimsby Airpark (XGY) | Grimsby | ON | Williamsport Regional to Grimsby Airpark |
| Joliette (XJL) | Joliette | QC | Williamsport Regional to Joliette |
| Brampton (XPN) | Brampton | ON | Williamsport Regional to Brampton |
| Cornwall Regional (YCC) | Cornwall | ON | Williamsport Regional to Cornwall Regional |
| Centralia/James T Field Memorial (YCE) | Centralia | ON | Williamsport Regional to Centralia/James T Field Memorial |
| Chatham-Kent Municipal (YCK) | Chatham | ON | Williamsport Regional to Chatham-Kent Municipal |
| Niagara District (YCM) | St Catharines | ON | Williamsport Regional to Niagara District |
| Midland/Huronia (YEE) | Midland | ON | Williamsport Regional to Midland/Huronia |
| Manitowaning Manitoulin East Municipal (YEM) | Manitowaning | ON | Williamsport Regional to Manitowaning Manitoulin East Municipal |
| Goderich (YGD) | Goderich | ON | Williamsport Regional to Goderich |
| Kingston (YGK) | Kingston | ON | Williamsport Regional to Kingston |
| John C Munro Hamilton International (YHM) | Hamilton | ON | Williamsport Regional to John C Munro Hamilton International |
| Saugeen Municipal (YHS) | Hanover | ON | Williamsport Regional to Saugeen Municipal |
| Montreal St Hubert (YHU) | Montreal | QC | Williamsport Regional to Montreal St Hubert |
| Willow Run (YIP) | Detroit | MI | Williamsport Regional to Willow Run |
| St Jean (YJN) | St Jean | QC | Williamsport Regional to St Jean |
| Kincardine (YKD) | Kincardine | ON | Williamsport Regional to Kincardine |
| Lake Simcoe Regional (YLS) | Barrie-Orillia | ON | Williamsport Regional to Lake Simcoe Regional |
| Maniwaki (YMW) | Maniwaki | QC | Williamsport Regional to Maniwaki |
| Montreal International Mirabel (YMX) | Montreal | QC | Williamsport Regional to Montreal International Mirabel |
| Gatineau-Ottawa Executive Airport (YND) | Ottawa | QC | Williamsport Regional to Gatineau-Ottawa Executive Airport |
| Youngstown/Warren Regional (YNG) | Youngstown | OH | Williamsport Regional to Youngstown/Warren Regional |
| Oshawa (YOO) | Oshawa | ON | Williamsport Regional to Oshawa |
| Owen Sound - Billy Bishop Regional (YOS) | Owen Sound | ON | Williamsport Regional to Owen Sound - Billy Bishop Regional |
| Ottawa Macdonald Cartier Intl (YOW) | Ottawa | ON | Williamsport Regional to Ottawa Macdonald Cartier Intl |
| Parry Sound Area Municipal (YPD) | Parry Sound | ON | Williamsport Regional to Parry Sound Area Municipal |
| Peterborough (YPQ) | Peterborough | ON | Williamsport Regional to Peterborough |
| Pelee Island (YPT) | Pelee Island | ON | Williamsport Regional to Pelee Island |
| Muskoka (YQA) | Gravenhurst | ON | Williamsport Regional to Muskoka |
| Windsor (YQG) | Windsor | ON | Williamsport Regional to Windsor |
| St Thomas Municipal (YQS) | St Thomas | ON | Williamsport Regional to St Thomas Municipal |
| Ottawa/Rockcliffe (YRO) | Ottawa | ON | Williamsport Regional to Ottawa/Rockcliffe |
| Ottawa/Carp (YRP) | Ottawa | ON | Williamsport Regional to Ottawa/Carp |
| Stratford Municipal (YSA) | Stratford | ON | Williamsport Regional to Stratford Municipal |
| Sherbrooke (YSC) | Sherbrooke | QC | Williamsport Regional to Sherbrooke |
| Smiths Falls Montague/Russ Beach (YSH) | Smiths Falls | ON | Williamsport Regional to Smiths Falls Montague/Russ Beach |
| Pembroke (YTA) | Pembroke | ON | Williamsport Regional to Pembroke |
| La Macaza/Mont Tremblant Intl (YTM) | La Macaza | QC | Williamsport Regional to La Macaza/Mont Tremblant Intl |
| Trenton (YTR) | Trenton | ON | Williamsport Regional to Trenton |
| Billy Bishop Toronto City (YTZ) | Toronto | ON | Williamsport Regional to Billy Bishop Toronto City |
| Montreal/Pierre Elliott Trudeau Intl (YUL) | Montreal | QC | Williamsport Regional to Montreal/Pierre Elliott Trudeau Intl |
| Wiarton (YVV) | Wiarton | ON | Williamsport Regional to Wiarton |
| London (YXU) | London | ON | Williamsport Regional to London |
| North Bay (YYB) | North Bay | ON | Williamsport Regional to North Bay |
| Toronto Lester B Pearson International (YYZ) | Toronto | ON | Williamsport Regional to Toronto Lester B Pearson International |
| Sarnia/Chris Hadfield (YZR) | Sarnia | ON | Williamsport Regional to Sarnia/Chris Hadfield |
| Bromont (ZBM) | Bromont | QC | Williamsport Regional to Bromont |
| Zanesville Municipal (ZZV) | Zanesville | OH | Williamsport Regional to Zanesville Municipal |
