| Antrim County (ACB) | Bellaire | MI | Willow Run to Antrim County |
| Allegheny County (AGC) | Pittsburgh | PA | Willow Run to Allegheny County |
| Anderson Municipal-Darlington Field (AID) | Anderson | IN | Willow Run to Anderson Municipal-Darlington Field |
| Akron Fulton International (AKC) | Akron | OH | Willow Run to Akron Fulton International |
| Gratiot Community (AMN) | Alma | MI | Willow Run to Gratiot Community |
| Tri-State Steuben County (ANQ) | Angola | IN | Willow Run to Tri-State Steuben County |
| Lima Allen County (AOH) | Lima | OH | Willow Run to Lima Allen County |
| Altoona/Blair County (AOO) | Altoona | PA | Willow Run to Altoona/Blair County |
| Alpena County Regional (APN) | Alpena | MI | Willow Run to Alpena County Regional |
| Watertown International (ART) | Watertown | NY | Willow Run to Watertown International |
| Lakeland/Noble F. Lee Memorial Field (ARV) | Minocqua | WI | Willow Run to Lakeland/Noble F. Lee Memorial Field |
| Gordon K Bush Ohio University (ATO) | Athens/Albany | OH | Willow Run to Gordon K Bush Ohio University |
| Appleton International (ATW) | Appleton | WI | Willow Run to Appleton International |
| Wausau Downtown (AUW) | Wausau | WI | Willow Run to Wausau Downtown |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Willow Run to Chicago/Aurora Municipal |
| Auglaize County Neil Armstrong (AXV) | Wapakoneta | OH | Willow Run to Auglaize County Neil Armstrong |
| Kalamazoo/Battle Creek International (AZO) | Kalamazoo | MI | Willow Run to Kalamazoo/Battle Creek International |
| Virginia Tech Montgomery Executive (BCB) | Blacksburg | VA | Willow Run to Virginia Tech Montgomery Executive |
| Southwest Michigan Regional (BEH) | Benton Harbor | MI | Willow Run to Southwest Michigan Regional |
| Bradford Regional (BFD) | Bradford | PA | Willow Run to Bradford Regional |
| Beaver County (BFP) | Beaver Falls | PA | Willow Run to Beaver County |
| Virgil I Grissom Municipal (BFR) | Bedford | IN | Willow Run to Virgil I Grissom Municipal |
| Greater Binghamton Edwin A Link Field (BGM) | Binghamton | NY | Willow Run to Greater Binghamton Edwin A Link Field |
| Wayne County (BJJ) | Wooster | OH | Willow Run to Wayne County |
| Burke Lakefront (BKL) | Cleveland | OH | Willow Run to Burke Lakefront |
| Raleigh County Memorial (BKW) | Beckley | WV | Willow Run to Raleigh County Memorial |
| Mercer County (BLF) | Bluefield | WV | Willow Run to Mercer County |
| Monroe County (BMG) | Bloomington | IN | Willow Run to Monroe County |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Willow Run to Central Illinois Regional at Bloomington Normal |
| Samuels Field (BRY) | Bardstown | KY | Willow Run to Samuels Field |
| W K Kellogg Regional (BTL) | Battle Creek | MI | Willow Run to W K Kellogg Regional |
| Butler County/K W Scholter Field (BTP) | Butler | PA | Willow Run to Butler County/K W Scholter Field |
| Buffalo Niagara International (BUF) | Buffalo | NY | Willow Run to Buffalo Niagara International |
| Bowling Green Warren County Regional (BWG) | Bowling Green | KY | Willow Run to Bowling Green Warren County Regional |
| Wexford County (CAD) | Cadillac | MI | Willow Run to Wexford County |
| Akron/Canton Regional (CAK) | Akron | OH | Willow Run to Akron/Canton Regional |
| Greater Cumberland Regional (CBE) | Cumberland | MD | Willow Run to Greater Cumberland Regional |
| Mettel Field (CEV) | Connersville | IN | Willow Run to Mettel Field |
| Cuyahoga County (CGF) | Cleveland | OH | Willow Run to Cuyahoga County |
| Charlottesville Albemarle (CHO) | Charlottesville | VA | Willow Run to Charlottesville Albemarle |
| Chippewa County International (CIU) | Sault Ste Marie | MI | Willow Run to Chippewa County International |
| North Central West Virginia (CKB) | Clarksburg | WV | Willow Run to North Central West Virginia |
| Cleveland/Hopkins International (CLE) | Cleveland | OH | Willow Run to Cleveland/Hopkins International |
| Clintonville Municipal (CLI) | Clintonville | WI | Willow Run to Clintonville Municipal |
| Columbus Municipal (CLU) | Columbus | IN | Willow Run to Columbus Municipal |
| John Glenn International (CMH) | Columbus | OH | Willow Run to John Glenn International |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Willow Run to University of Illinois-Willard |
| Sparta/Fort Mccoy (CMY) | Sparta | WI | Willow Run to Sparta/Fort Mccoy |
| Yeager (CRW) | Charleston | WV | Willow Run to Yeager |
| Cortland County-Chase Field (CTX) | Cortland | NY | Willow Run to Cortland County-Chase Field |
| Cincinnati Northern Kentucky International (CVG) | Cincinnati | OH | Willow Run to Cincinnati Northern Kentucky International |
| Central Wisconsin (CWA) | Mosinee | WI | Willow Run to Central Wisconsin |
| Clinton Municipal (CWI) | Clinton | IA | Willow Run to Clinton Municipal |
| Burlington Executive (CZB) | Burlington | ON | Willow Run to Burlington Executive |
| Dayton International James M Cox (DAY) | Dayton | OH | Willow Run to Dayton International James M Cox |
| Dubuque Regional (DBQ) | Dubuque | IA | Willow Run to Dubuque Regional |
| Decatur (DEC) | Decatur | IL | Willow Run to Decatur |
| Defiance Memorial (DFI) | Defiance | OH | Willow Run to Defiance Memorial |
| Chautauqua County/Dunkirk (DKK) | Dunkirk | NY | Willow Run to Chautauqua County/Dunkirk |
| Vermilion Regional (DNV) | Danville | IL | Willow Run to Vermilion Regional |
| Dupage (DPA) | Chicago | IL | Willow Run to Dupage |
| Drummond Island (DRE) | Drummond Island | MI | Willow Run to Drummond Island |
| Dansville Municipal (DSV) | Dansville | NY | Willow Run to Dansville Municipal |
| Dunnville (DU9) | Dunnville | ON | Willow Run to Dunnville |
| Dubois Regional (DUJ) | DuBois | PA | Willow Run to Dubois Regional |
| Davenport Municipal (DVN) | Davenport | IA | Willow Run to Davenport Municipal |
| Iosco County (ECA) | East Tawas | MI | Willow Run to Iosco County |
| Eagle River Union (EGV) | Eagle River | WI | Willow Run to Eagle River Union |
| Elkhart Municipal (EKI) | Elkhart | IN | Willow Run to Elkhart Municipal |
| Elkins/Randolph County (EKN) | Elkins | WV | Willow Run to Elkins/Randolph County |
| Addington Field (EKX) | Elizabethtown | KY | Willow Run to Addington Field |
| Elmira/Corning Regional (ELM) | Elmira | NY | Willow Run to Elmira/Corning Regional |
| Wellsville Municipal/Tarantine Field (ELZ) | Wellsville | NY | Willow Run to Wellsville Municipal/Tarantine Field |
| Centralia Municipal (ENL) | Centralia | IL | Willow Run to Centralia Municipal |
| Kenosha Regional (ENW) | Kenosha | WI | Willow Run to Kenosha Regional |
| Erie International/Tom Ridge Field (ERI) | Erie | PA | Willow Run to Erie International/Tom Ridge Field |
| Delta County (ESC) | Escanaba | MI | Willow Run to Delta County |
| West Bend Municipal (ETB) | West Bend | WI | Willow Run to West Bend Municipal |
| Evansville Regional (EVV) | Evansville | IN | Willow Run to Evansville Regional |
| Frederick Municipal (FDK) | Frederick | MD | Willow Run to Frederick Municipal |
| Findlay (FDY) | Findlay | OH | Willow Run to Findlay |
| Albertus (FEP) | Freeport | IL | Willow Run to Albertus |
| Capital City (FFT) | Frankfort | KY | Willow Run to Capital City |
| Venango Regional (FKL) | Franklin | PA | Willow Run to Venango Regional |
| Fond Du Lac County (FLD) | Fond Du Lac | WI | Willow Run to Fond Du Lac County |
| Bishop International (FNT) | Flint | MI | Willow Run to Bishop International |
| French Lick Municipal (FRH) | French Lick | IN | Willow Run to French Lick Municipal |
| Front Royal-Warren County (FRR) | Front Royal | VA | Willow Run to Front Royal-Warren County |
| Fort Wayne International (FWA) | Fort Wayne | IN | Willow Run to Fort Wayne International |
| Montgomery County Airpark (GAI) | Gaithersburg | MD | Willow Run to Montgomery County Airpark |
| Galesburg Municipal (GBG) | Galesburg | IL | Willow Run to Galesburg Municipal |
| Gladwin Zettel Memorial (GDW) | Gladwin | MI | Willow Run to Gladwin Zettel Memorial |
| Gaylord Regional (GLR) | Gaylord | MI | Willow Run to Gaylord Regional |
| Glasgow Municipal (GLW) | Glasgow | KY | Willow Run to Glasgow Municipal |
| Galion Municipal (GQQ) | Galion | OH | Willow Run to Galion Municipal |
| Austin Straubel International (GRB) | Green Bay | WI | Willow Run to Austin Straubel International |
| Greenville (GRE) | Greenville | IL | Willow Run to Greenville |
| Gerald R Ford International (GRR) | Grand Rapids | MI | Willow Run to Gerald R Ford International |
| Goshen Municipal (GSH) | Goshen | IN | Willow Run to Goshen Municipal |
| Gettysburg Regional (GTY) | Gettysburg | PA | Willow Run to Gettysburg Regional |
| Grissom Aeroplex/Arb (GUS) | Peru | IN | Willow Run to Grissom Aeroplex/Arb |
| Gordonsville Municipal Airport (GVE) | Gordonsville | VA | Willow Run to Gordonsville Municipal Airport |
| Gary/Chicago International (GYY) | GARY | IN | Willow Run to Gary/Chicago International |
| Three Rivers Municipal Dr Haines (HAI) | Three Rivers | MI | Willow Run to Three Rivers Municipal Dr Haines |
| Butler County Regional-Hogan Field (HAO) | Hamilton | OH | Willow Run to Butler County Regional-Hogan Field |
| Capital City Harrisburg (HAR) | Harrisburg | PA | Willow Run to Capital City Harrisburg |
| Richard A Henson Field/Hagerstown Regional (HGR) | Hagerstown | MD | Willow Run to Richard A Henson Field/Hagerstown Regional |
| Wheeling Ohio County (HLG) | Wheeling | WV | Willow Run to Wheeling Ohio County |
| Park Township (HLM) | Holland | MI | Willow Run to Park Township |
| Huntingburg (HNB) | Huntingburg | IN | Willow Run to Huntingburg |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Willow Run to Harrisburg-Raleigh |
| Ingalls Field (HSP) | Hot Springs | VA | Willow Run to Ingalls Field |
| Roscommon County - Blodgett Memorial (HTL) | Houghton Lake | MI | Willow Run to Roscommon County - Blodgett Memorial |
| Tri-State Milton J Ferguson Field (HTS) | Huntington | WV | Willow Run to Tri-State Milton J Ferguson Field |
| Lawrence County Airpark (HTW) | Chesapeake | OH | Willow Run to Lawrence County Airpark |
| Terre Haute Regional/Hulman Field (HUF) | Terre Haute | IN | Willow Run to Terre Haute Regional/Hulman Field |
| Hazleton Regional (HZL) | Hazleton | PA | Willow Run to Hazleton Regional |
| Washington Dulles International (IAD) | Washington | VA | Willow Run to Washington Dulles International |
| Niagara Falls International (IAG) | Niagara Falls | NY | Willow Run to Niagara Falls International |
| Indiana County/Jimmy Stewart Field (IDI) | Indiana | PA | Willow Run to Indiana County/Jimmy Stewart Field |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Willow Run to Jacksonville Municipal |
| Greater Kankakee (IKK) | Kankakee | IL | Willow Run to Greater Kankakee |
| Wilmington Airpark (ILN) | Wilmington | OH | Willow Run to Wilmington Airpark |
| Ford (IMT) | Iron Mountain | MI | Willow Run to Ford |
| Indianapolis International (IND) | Indianapolis | IN | Willow Run to Indianapolis International |
| Williamsport Regional (IPT) | Williamsport | PA | Willow Run to Williamsport Regional |
| Kirsch Municipal (IRS) | Sturgis | MI | Willow Run to Kirsch Municipal |
| Schoolcraft County (ISQ) | Manistique | MI | Willow Run to Schoolcraft County |
| Alexander Field South Wood County (ISW) | Wisconsin Rapids | WI | Willow Run to Alexander Field South Wood County |
| Ithaca Tompkins Regional (ITH) | Ithaca | NY | Willow Run to Ithaca Tompkins Regional |
| Northeast Ohio Regional (JFN) | Ashtabula | OH | Willow Run to Northeast Ohio Regional |
| Chautauqua County/Jamestown (JHW) | Jamestown | NY | Willow Run to Chautauqua County/Jamestown |
| Joliet Regional Airport (JOT) | Joliet | IL | Willow Run to Joliet Regional Airport |
| John Murtha Johnstown/Cambria County (JST) | Johnstown | PA | Willow Run to John Murtha Johnstown/Cambria County |
| Souther Wisconsin Regional (JVL) | Janesville | WI | Willow Run to Souther Wisconsin Regional |
| Jackson County/Reynolds Field (JXN) | Jackson | MI | Willow Run to Jackson County/Reynolds Field |
| Kentland Municipal (KKT) | Kentland | IN | Willow Run to Kentland Municipal |
| Purdue University (LAF) | Lafayette | IN | Willow Run to Purdue University |
| Capital Region International (LAN) | Lansing | MI | Willow Run to Capital Region International |
| Arnold Palmer Regional (LBE) | Latrobe | PA | Willow Run to Arnold Palmer Regional |
| Rickenbacker International (LCK) | Columbus | OH | Willow Run to Rickenbacker International |
| Mason County (LDM) | Ludington | MI | Willow Run to Mason County |
| Blue Grass (LEX) | Lexington | KY | Willow Run to Blue Grass |
| William T. Piper Memorial (LHV) | Lock Haven | PA | Willow Run to William T. Piper Memorial |
| Willoughby Lost Nation Municipal (LNN) | Willoughby | OH | Willow Run to Willoughby Lost Nation Municipal |
| Lonesome Pine (LNP) | Wise | VA | Willow Run to Lonesome Pine |
| Tri-County Regional (LNR) | Lone Rock | WI | Willow Run to Tri-County Regional |
| Lancaster (LNS) | Lancaster | PA | Willow Run to Lancaster |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Willow Run to Lewis University Chicago Romeoville |
| Bowman Field (LOU) | Louisville | KY | Willow Run to Bowman Field |
| London Corbin Magee Field (LOZ) | London | KY | Willow Run to London Corbin Magee Field |
| La Porte Municipal (LPO) | La Porte | IN | Willow Run to La Porte Municipal |
| Cincinnati Municipal Lunken (LUK) | Cincinnati | OH | Willow Run to Cincinnati Municipal Lunken |
| Greenbrier Valley (LWB) | Lewisburg | WV | Willow Run to Greenbrier Valley |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | Willow Run to Lawrenceville-Vincennes International |
| Manistee County-Blacker (MBL) | Manistee | MI | Willow Run to Manistee County-Blacker |
| Mbs International (MBS) | Saginaw | MI | Willow Run to Mbs International |
| Mackinac Island (MCD) | Mackinac Island | MI | Willow Run to Mackinac Island |
| Taylor County (MDF) | Medford | WI | Willow Run to Taylor County |
| Madison Municipal (MDN) | Madison | IN | Willow Run to Madison Municipal |
| Harrisburg International (MDT) | Harrisburg | PA | Willow Run to Harrisburg International |
| Chicago Midway International (MDW) | Chicago | IL | Willow Run to Chicago Midway International |
| Port Meadville (MEJ) | Meadville | PA | Willow Run to Port Meadville |
| Mansfield Lahm Regional (MFD) | Mansfield | OH | Willow Run to Mansfield Lahm Regional |
| Marshfield Municipal (MFI) | Marshfield | WI | Willow Run to Marshfield Municipal |
| Michigan City Municipal-Phillips Field (MGC) | Michigan City | IN | Willow Run to Michigan City Municipal-Phillips Field |
| Morgantown Municipal Walter L Bill Hart Field (MGW) | Morgantown | WV | Willow Run to Morgantown Municipal Walter L Bill Hart Field |
| Dayton-Wright Brothers (MGY) | Dayton | OH | Willow Run to Dayton-Wright Brothers |
| Delaware County Regional (MIE) | Muncie | IN | Willow Run to Delaware County Regional |
| Milwaukee General Mitchell International (MKE) | Milwaukee | WI | Willow Run to Milwaukee General Mitchell International |
| Muskegon County (MKG) | Muskegon | MI | Willow Run to Muskegon County |
| Quad City International (MLI) | Moline | IL | Willow Run to Quad City International |
| Menominee-Marinette Twin County (MNM) | Menominee | MI | Willow Run to Menominee-Marinette Twin County |
| Marion Municipal (MNN) | Marion | OH | Willow Run to Marion Municipal |
| Manassas Regional/Harry P Davis Field (MNZ) | Manassas | VA | Willow Run to Manassas Regional/Harry P Davis Field |
| Mount Pleasant Municipal (MOP) | Mount Pleasant | MI | Willow Run to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Willow Run to Macomb Municipal |
| Sawyer International (MQT) | Marquette | MI | Willow Run to Sawyer International |
| Eastern West Virginia Regional/Shepherd Field (MRB) | Martinsburg | WV | Willow Run to Eastern West Virginia Regional/Shepherd Field |
| Truax Field/Dane County Regional (MSN) | Madison | WI | Willow Run to Truax Field/Dane County Regional |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Willow Run to Coles County Memorial |
| Manitowoc County (MTW) | Manitowoc | WI | Willow Run to Manitowoc County |
| Muscatine Municipal (MUT) | Muscatine | IA | Willow Run to Muscatine Municipal |
| Mount Vernon (MVN) | Mount Vernon | IL | Willow Run to Mount Vernon |
| Lawrence J Timmerman (MWC) | Milwaukee | WI | Willow Run to Lawrence J Timmerman |
| Middletown Regional - Hook Field (MWO) | Middletown | OH | Willow Run to Middletown Regional - Hook Field |
| Monticello Regional (MXO) | Monticello | IA | Willow Run to Monticello Regional |
| Marion Municipal (MZZ) | Marion | IN | Willow Run to Marion Municipal |
| Haliburton/Stanhope Muni (ND4) | Haliburton | | Willow Run to Haliburton/Stanhope Muni |
| Lindsay (NF4) | Lindsay | ON | Willow Run to Lindsay |
| Jerry Tyler Memorial (NLE) | Niles | MI | Willow Run to Jerry Tyler Memorial |
| Niagara Central (NQ3) | Welland | ON | Willow Run to Niagara Central |
| Tobermory (NR4) | Tobermory | ON | Willow Run to Tobermory |
| Toronto/Markham (NU8) | Markham | | Willow Run to Toronto/Markham |
| Collingwood (NY3) | Collingwood | ON | Willow Run to Collingwood |
| Garrett County (ODM) | Oakland | MD | Willow Run to Garrett County |
| Kokomo Municipal (OKK) | Kokomo | IN | Willow Run to Kokomo Municipal |
| Cattaraugus County-Olean Municipal (OLE) | Olean | NY | Willow Run to Cattaraugus County-Olean Municipal |
| Olney-Noble (OLY) | Olney-Noble | IL | Willow Run to Olney-Noble |
| Chicago O'hare International (ORD) | Chicago | IL | Willow Run to Chicago O'hare International |
| Oscoda-Wurtsmith (OSC) | Oscoda | MI | Willow Run to Oscoda-Wurtsmith |
| Wittman Regional (OSH) | Oshkosh | WI | Willow Run to Wittman Regional |
| Ohio State University (OSU) | Columbus | OH | Willow Run to Ohio State University |
| Owensboro-Daviess County Regional (OWB) | Owensboro | KY | Willow Run to Owensboro-Daviess County Regional |
| Miami University (OXD) | Oxford | OH | Willow Run to Miami University |
| Prairie Du Chien Municipal (PCD) | Prairie Duchien | WI | Willow Run to Prairie Du Chien Municipal |
| Cambridge/Reid's Field (PE4) | Cambridge | ON | Willow Run to Cambridge/Reid's Field |
| Grant County (PGC) | Petersburg | WV | Willow Run to Grant County |
| Harry Clever Field (PHD) | New Philadelphia | OH | Willow Run to Harry Clever Field |
| St Clair County International (PHN) | Port Huron | MI | Willow Run to St Clair County International |
| Gen Wayne A Downing Peoria International (PIA) | Peoria | IL | Willow Run to Gen Wayne A Downing Peoria International |
| Pittsburgh International (PIT) | Pittsburgh | PA | Willow Run to Pittsburgh International |
| Mid Ohio Valley Regional (PKB) | Parkersburg | WV | Willow Run to Mid Ohio Valley Regional |
| Pellston Regional of Emmet County (PLN) | Pellston | MI | Willow Run to Pellston Regional of Emmet County |
| Plymouth Municipal (PLY) | Plymouth | IN | Willow Run to Plymouth Municipal |
| Greater Portsmouth Regional (PMH) | Portsmouth | OH | Willow Run to Greater Portsmouth Regional |
| Wingham/Richard W Levan (PR7) | Wingham | ON | Willow Run to Wingham/Richard W Levan |
| Prentice Municipal (PRW) | Prentice | WI | Willow Run to Prentice Municipal |
| Mid-State (PSB) | Philipsburg | PA | Willow Run to Mid-State |
| New River Valley (PSK) | Dublin | VA | Willow Run to New River Valley |
| Killarney (PT2) | Killarney | ON | Willow Run to Killarney |
| Tyendinaga/Mohawk (PU6) | Tyendinaga | ON | Willow Run to Tyendinaga/Mohawk |
| Chicago Executive (PWK) | Chicago | IL | Willow Run to Chicago Executive |
| Batten International (RAC) | Racine | WI | Willow Run to Batten International |
| Fulton County (RCR) | Rochester | IN | Willow Run to Fulton County |
| Nartron Field (RCT) | Reed City | MI | Willow Run to Nartron Field |
| Mifflin County (RED) | Reedsville | PA | Willow Run to Mifflin County |
| Chicago/Rockford International (RFD) | Rockford | IL | Willow Run to Chicago/Rockford International |
| Rhinelander Oneida County (RHI) | Rhinelander | WI | Willow Run to Rhinelander Oneida County |
| Richmond Municipal (RID) | Richmond | IN | Willow Run to Richmond Municipal |
| Jasper County (RNZ) | Rensselaer | IN | Willow Run to Jasper County |
| Roanoke Regional/Woodrum Field (ROA) | Roanoke | VA | Willow Run to Roanoke Regional/Woodrum Field |
| Greater Rochester International (ROC) | Rochester | NY | Willow Run to Greater Rochester International |
| Merrill Municipal (RRL) | Merrill | WI | Willow Run to Merrill Municipal |
| Sheboygan County Memorial (SBM) | Sheboygan | WI | Willow Run to Sheboygan County Memorial |
| South Bend International (SBN) | South Bend | IN | Willow Run to South Bend International |
| University Park (SCE) | State College | PA | Willow Run to University Park |
| Louisville International/Standiford Field (SDF) | Louisville | KY | Willow Run to Louisville International/Standiford Field |
| Penn Valley (SEG) | Selinsgrove | PA | Willow Run to Penn Valley |
| Freeman Municipal (SER) | Seymour | IN | Willow Run to Freeman Municipal |
| Springfield/Beckley Municipal (SGH) | Springfield | OH | Willow Run to Springfield/Beckley Municipal |
| Shenandoah Valley Regional (SHD) | Staunton | VA | Willow Run to Shenandoah Valley Regional |
| Sullivan County (SIV) | Sullivan | IN | Willow Run to Sullivan County |
| Salem-Leckrone (SLO) | Salem | IL | Willow Run to Salem-Leckrone |
| Smith Field (SMD) | Fort Wayne | IN | Willow Run to Smith Field |
| Lake Cumberland Regional (SME) | Somerset | KY | Willow Run to Lake Cumberland Regional |
| Abraham Lincoln Capital (SPI) | Springfield | IL | Willow Run to Abraham Lincoln Capital |
| Whiteside Co-Jos H Bittorf Field (SQI) | Sterling/Rock Falls | IL | Willow Run to Whiteside Co-Jos H Bittorf Field |
| Stevens Point Municipal (STE) | Stevens Point | WI | Willow Run to Stevens Point Municipal |
| St Marys Municipal (STQ) | St Marys | PA | Willow Run to St Marys Municipal |
| Door County Cherryland (SUE) | Sturgeon Bay | WI | Willow Run to Door County Cherryland |
| Syracuse Hancock International (SYR) | Syracuse | NY | Willow Run to Syracuse Hancock International |
| Toledo Executive (TDZ) | Toledo | OH | Willow Run to Toledo Executive |
| York (THV) | York | PA | Willow Run to York |
| Toledo Express (TOL) | Toledo | OH | Willow Run to Toledo Express |
| Cherry Capital (TVC) | Traverse City | MI | Willow Run to Cherry Capital |
| Tuscola Area (TZC) | Caro | MI | Willow Run to Tuscola Area |
| Waukesha County (UES) | Waukesha | WI | Willow Run to Waukesha County |
| Chicago/Waukegan Regional (UGN) | Chicago | IL | Willow Run to Chicago/Waukegan Regional |
| Dodge County (UNU) | Juneau | WI | Willow Run to Dodge County |
| Virginia Highlands (VJI) | Abingdon | VA | Willow Run to Virginia Highlands |
| Vandalia Municipal (VLA) | Vandalia | IL | Willow Run to Vandalia Municipal |
| Porter County Regional (VPZ) | Valparaiso | IN | Willow Run to Porter County Regional |
| Walter A Duncan Field/Illinois Valley Regional (VYS) | Peru | IL | Willow Run to Walter A Duncan Field/Illinois Valley Regional |
| Greene County (WAY) | Waynesburg | PA | Willow Run to Greene County |
| West Branch Community (WBK) | West Branch | MI | Willow Run to West Branch Community |
| Roben-Hood (WBR) | Big Rapids | MI | Willow Run to Roben-Hood |
| Wilkes-Barre Wyoming Valley (WBW) | Wilkes-Barre | PA | Willow Run to Wilkes-Barre Wyoming Valley |
| Winchester Regional (WGO) | Winchester | VA | Willow Run to Winchester Regional |
| Washington County (WSG) | Washington | PA | Willow Run to Washington County |
| Grand Geneva Resort (XES) | Lake Geneva | WI | Willow Run to Grand Geneva Resort |
| Brantford Municipal (XFV) | Brantford | ON | Willow Run to Brantford Municipal |
| Grimsby Airpark (XGY) | Grimsby | ON | Willow Run to Grimsby Airpark |
| Brampton (XPN) | Brampton | ON | Willow Run to Brampton |
| Sault Ste Marie (YAM) | Sault Ste Marie | ON | Willow Run to Sault Ste Marie |
| Centralia/James T Field Memorial (YCE) | Centralia | ON | Willow Run to Centralia/James T Field Memorial |
| Chatham-Kent Municipal (YCK) | Chatham | ON | Willow Run to Chatham-Kent Municipal |
| Niagara District (YCM) | St Catharines | ON | Willow Run to Niagara District |
| Bar River (YEB) | Bar River | ON | Willow Run to Bar River |
| Midland/Huronia (YEE) | Midland | ON | Willow Run to Midland/Huronia |
| Elliot Lake Municipal (YEL) | Elliot Lake | ON | Willow Run to Elliot Lake Municipal |
| Manitowaning Manitoulin East Municipal (YEM) | Manitowaning | ON | Willow Run to Manitowaning Manitoulin East Municipal |
| Goderich (YGD) | Goderich | ON | Willow Run to Goderich |
| Kingston (YGK) | Kingston | ON | Willow Run to Kingston |
| John C Munro Hamilton International (YHM) | Hamilton | ON | Willow Run to John C Munro Hamilton International |
| Saugeen Municipal (YHS) | Hanover | ON | Willow Run to Saugeen Municipal |
| Kincardine (YKD) | Kincardine | ON | Willow Run to Kincardine |
| Chapleau (YLD) | Chapleau | ON | Willow Run to Chapleau |
| Lake Simcoe Regional (YLS) | Barrie-Orillia | ON | Willow Run to Lake Simcoe Regional |
| Youngstown/Warren Regional (YNG) | Youngstown | OH | Willow Run to Youngstown/Warren Regional |
| Oshawa (YOO) | Oshawa | ON | Willow Run to Oshawa |
| Owen Sound - Billy Bishop Regional (YOS) | Owen Sound | ON | Willow Run to Owen Sound - Billy Bishop Regional |
| Parry Sound Area Municipal (YPD) | Parry Sound | ON | Willow Run to Parry Sound Area Municipal |
| Peterborough (YPQ) | Peterborough | ON | Willow Run to Peterborough |
| Pelee Island (YPT) | Pelee Island | ON | Willow Run to Pelee Island |
| Muskoka (YQA) | Gravenhurst | ON | Willow Run to Muskoka |
| St Thomas Municipal (YQS) | St Thomas | ON | Willow Run to St Thomas Municipal |
| Stratford Municipal (YSA) | Stratford | ON | Willow Run to Stratford Municipal |
| Sudbury (YSB) | Sudbury | ON | Willow Run to Sudbury |
| Pembroke (YTA) | Pembroke | ON | Willow Run to Pembroke |
| Trenton (YTR) | Trenton | ON | Willow Run to Trenton |
| Billy Bishop Toronto City (YTZ) | Toronto | ON | Willow Run to Billy Bishop Toronto City |
| Wiarton (YVV) | Wiarton | ON | Willow Run to Wiarton |
| London (YXU) | London | ON | Willow Run to London |
| North Bay (YYB) | North Bay | ON | Willow Run to North Bay |
| Toronto Lester B Pearson International (YYZ) | Toronto | ON | Willow Run to Toronto Lester B Pearson International |
| Gore Bay Manitoulin (YZE) | Gore Bay | ON | Willow Run to Gore Bay Manitoulin |
| Sarnia/Chris Hadfield (YZR) | Sarnia | ON | Willow Run to Sarnia/Chris Hadfield |
| Zanesville Municipal (ZZV) | Zanesville | OH | Willow Run to Zanesville Municipal |
