| Antrim County (ACB) | Bellaire | MI | Dubuque Regional to Antrim County |
| Lenawee County (ADG) | Adrian | MI | Dubuque Regional to Lenawee County |
| Albert Lea Municipal (AEL) | Albert Lea | MN | Dubuque Regional to Albert Lea Municipal |
| Amery Municipal (AHH) | Amery | WI | Dubuque Regional to Amery Municipal |
| Anderson Municipal-Darlington Field (AID) | Anderson | IN | Dubuque Regional to Anderson Municipal-Darlington Field |
| Atlantic Municipal (AIO) | Atlantic | IA | Dubuque Regional to Atlantic Municipal |
| Lee C Fine Memorial (AIZ) | KAISER/LAKE OZARK | MO | Dubuque Regional to Lee C Fine Memorial |
| St Louis Regional (ALN) | Alton | IL | Dubuque Regional to St Louis Regional |
| Waterloo Regional (ALO) | Waterloo | IA | Dubuque Regional to Waterloo Regional |
| Gratiot Community (AMN) | Alma | MI | Dubuque Regional to Gratiot Community |
| Ames Municipal (AMW) | Ames | IA | Dubuque Regional to Ames Municipal |
| Tri-State Steuben County (ANQ) | Angola | IN | Dubuque Regional to Tri-State Steuben County |
| Lima Allen County (AOH) | Lima | OH | Dubuque Regional to Lima Allen County |
| Alpena County Regional (APN) | Alpena | MI | Dubuque Regional to Alpena County Regional |
| Ann Arbor Municipal (ARB) | Ann Arbor | MI | Dubuque Regional to Ann Arbor Municipal |
| Lakeland/Noble F. Lee Memorial Field (ARV) | Minocqua | WI | Dubuque Regional to Lakeland/Noble F. Lee Memorial Field |
| John F Kennedy Memorial (ASX) | Ashland | WI | Dubuque Regional to John F Kennedy Memorial |
| Appleton International (ATW) | Appleton | WI | Dubuque Regional to Appleton International |
| Watertown Regional (ATY) | Watertown | SD | Dubuque Regional to Watertown Regional |
| Austin Municipal (AUM) | Austin | MN | Dubuque Regional to Austin Municipal |
| Wausau Downtown (AUW) | Wausau | WI | Dubuque Regional to Wausau Downtown |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Dubuque Regional to Chicago/Aurora Municipal |
| Algona Municipal (AXG) | Algona | IA | Dubuque Regional to Algona Municipal |
| Chandler Field (AXN) | Alexandria | MN | Dubuque Regional to Chandler Field |
| Auglaize County Neil Armstrong (AXV) | Wapakoneta | OH | Dubuque Regional to Auglaize County Neil Armstrong |
| Kalamazoo/Battle Creek International (AZO) | Kalamazoo | MI | Dubuque Regional to Kalamazoo/Battle Creek International |
| Benson Municipal (BBB) | Benson | MN | Dubuque Regional to Benson Municipal |
| Southwest Michigan Regional (BEH) | Benton Harbor | MI | Dubuque Regional to Southwest Michigan Regional |
| Virgil I Grissom Municipal (BFR) | Bedford | IN | Dubuque Regional to Virgil I Grissom Municipal |
| Beatrice Municipal (BIE) | Beatrice | NE | Dubuque Regional to Beatrice Municipal |
| Brookings Regional (BKX) | Brookings | SD | Dubuque Regional to Brookings Regional |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | Dubuque Regional to MidAmerica St Louis Scott AFB |
| Monroe County (BMG) | Bloomington | IN | Dubuque Regional to Monroe County |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Dubuque Regional to Central Illinois Regional at Bloomington Normal |
| Boone Municipal (BNW) | Boone | IA | Dubuque Regional to Boone Municipal |
| Brainerd Lakes Regional (BRD) | Brainerd | MN | Dubuque Regional to Brainerd Lakes Regional |
| Southeast Iowa Regional (BRL) | Burlington | IA | Dubuque Regional to Southeast Iowa Regional |
| Battle Creek Executive (BTL) | Battle Creek | MI | Dubuque Regional to Battle Creek Executive |
| Butler Memorial (BUM) | Butler | MO | Dubuque Regional to Butler Memorial |
| Wexford County (CAD) | Cadillac | MI | Dubuque Regional to Wexford County |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | Dubuque Regional to Council Bluffs Municipal |
| Northeast Iowa Regional (CCY) | Charles City | IA | Dubuque Regional to Northeast Iowa Regional |
| Mettel Field (CEV) | Connersville | IN | Dubuque Regional to Mettel Field |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | Dubuque Regional to Cape Girardeau Regional |
| The Eastern Iowa (CID) | Cedar Rapids | IA | Dubuque Regional to The Eastern Iowa |
| Arthur N Neu (CIN) | Carroll | IA | Dubuque Regional to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | Dubuque Regional to Cairo Regional |
| Chippewa County International (CIU) | Sault Ste Marie | MI | Dubuque Regional to Chippewa County International |
| Clintonville Municipal (CLI) | Clintonville | WI | Dubuque Regional to Clintonville Municipal |
| Columbus Municipal (CLU) | Columbus | IN | Dubuque Regional to Columbus Municipal |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Dubuque Regional to University of Illinois-Willard |
| Houghton County Memorial (CMX) | Hancock | MI | Dubuque Regional to Houghton County Memorial |
| Sparta/Fort Mccoy (CMY) | Sparta | WI | Dubuque Regional to Sparta/Fort Mccoy |
| Columbia Regional (COU) | Columbia | MO | Dubuque Regional to Columbia Regional |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | Dubuque Regional to St Louis Downtown |
| Creston Municipal (CSQ) | Creston | IA | Dubuque Regional to Creston Municipal |
| Canton Municipal (CTK) | Canton | SD | Dubuque Regional to Canton Municipal |
| Cincinnati Northern Kentucky International (CVG) | Cincinnati | OH | Dubuque Regional to Cincinnati Northern Kentucky International |
| Central Wisconsin (CWA) | Mosinee | WI | Dubuque Regional to Central Wisconsin |
| Clinton Municipal (CWI) | Clinton | IA | Dubuque Regional to Clinton Municipal |
| Dayton International James M Cox (DAY) | Dayton | OH | Dubuque Regional to Dayton International James M Cox |
| Decatur (DEC) | Decatur | IL | Dubuque Regional to Decatur |
| Decorah Municipal (DEH) | Decorah | IA | Dubuque Regional to Decorah Municipal |
| Coleman A Young Municipal (DET) | Detroit | MI | Dubuque Regional to Coleman A Young Municipal |
| Defiance Memorial (DFI) | Defiance | OH | Dubuque Regional to Defiance Memorial |
| Duluth International (DLH) | Duluth | MN | Dubuque Regional to Duluth International |
| Sedalia Regional (DMO) | Sedalia | MO | Dubuque Regional to Sedalia Regional |
| Denison Municipal (DNS) | Denison | IA | Dubuque Regional to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | Dubuque Regional to Vermilion Regional |
| Dupage (DPA) | Chicago | IL | Dubuque Regional to Dupage |
| Des Moines International (DSM) | Des Moines | IA | Dubuque Regional to Des Moines International |
| Detroit Lakes-Wething Field (DTL) | Detroit Lakes | MN | Dubuque Regional to Detroit Lakes-Wething Field |
| Detroit Metro Wayne County (DTW) | Detroit | MI | Dubuque Regional to Detroit Metro Wayne County |
| Davenport Municipal (DVN) | Davenport | IA | Dubuque Regional to Davenport Municipal |
| Chippewa Valley Regional (EAU) | Eau Claire | WI | Dubuque Regional to Chippewa Valley Regional |
| Webster City Municipal (EBS) | Webster City | IA | Dubuque Regional to Webster City Municipal |
| Iosco County (ECA) | East Tawas | MI | Dubuque Regional to Iosco County |
| Jefferson Municipal (EFW) | Jefferson | IA | Dubuque Regional to Jefferson Municipal |
| Eagle River Union (EGV) | Eagle River | WI | Dubuque Regional to Eagle River Union |
| Elkhart Municipal (EKI) | Elkhart | IN | Dubuque Regional to Elkhart Municipal |
| Emporia Municipal (EMP) | Emporia | KS | Dubuque Regional to Emporia Municipal |
| Centralia Municipal (ENL) | Centralia | IL | Dubuque Regional to Centralia Municipal |
| Kenosha Regional (ENW) | Kenosha | WI | Dubuque Regional to Kenosha Regional |
| Keokuk Municipal (EOK) | Keokuk | IA | Dubuque Regional to Keokuk Municipal |
| Delta County (ESC) | Escanaba | MI | Dubuque Regional to Delta County |
| Estherville Municipal (EST) | Estherville | IA | Dubuque Regional to Estherville Municipal |
| West Bend Municipal (ETB) | West Bend | WI | Dubuque Regional to West Bend Municipal |
| Eveleth-Virginia Municipal (EVM) | Eveleth | MN | Dubuque Regional to Eveleth-Virginia Municipal |
| Evansville Regional (EVV) | Evansville | IN | Dubuque Regional to Evansville Regional |
| Farmington Regional (FAM) | Farmington | MO | Dubuque Regional to Farmington Regional |
| Faribault Municipal (FBL) | Faribault | MN | Dubuque Regional to Faribault Municipal |
| Fairbury Municipal (FBY) | Fairbury | NE | Dubuque Regional to Fairbury Municipal |
| Flying Cloud (FCM) | Minneapolis | MN | Dubuque Regional to Flying Cloud |
| Findlay (FDY) | Findlay | OH | Dubuque Regional to Findlay |
| Albertus (FEP) | Freeport | IL | Dubuque Regional to Albertus |
| Fremont Municipal (FET) | Fremont | NE | Dubuque Regional to Fremont Municipal |
| Fairfield Municipal (FFL) | Fairfield | IA | Dubuque Regional to Fairfield Municipal |
| Fergus Falls Municipal-Einar Mickelson Field (FFM) | Fergus Falls | MN | Dubuque Regional to Fergus Falls Municipal-Einar Mickelson Field |
| Fond Du Lac County (FLD) | Fond Du Lac | WI | Dubuque Regional to Fond Du Lac County |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | Dubuque Regional to Sherman Army Airfield |
| Fort Madison Municipal (FMS) | Fort Madison | IA | Dubuque Regional to Fort Madison Municipal |
| Bishop International (FNT) | Flint | MI | Dubuque Regional to Bishop International |
| Fort Dodge Regional (FOD) | Fort Dodge | IA | Dubuque Regional to Fort Dodge Regional |
| Topeka Regional (FOE) | Topeka | KS | Dubuque Regional to Topeka Regional |
| French Lick Municipal (FRH) | French Lick | IN | Dubuque Regional to French Lick Municipal |
| Fairmont Municipal (FRM) | Fairmont | MN | Dubuque Regional to Fairmont Municipal |
| Sioux Falls Regional, Joe Foss Field (FSD) | Sioux Falls | SD | Dubuque Regional to Sioux Falls Regional, Joe Foss Field |
| Fort Scott Municipal (FSK) | Fort Scott | KS | Dubuque Regional to Fort Scott Municipal |
| Fort Wayne International (FWA) | Fort Wayne | IN | Dubuque Regional to Fort Wayne International |
| Forest City Municipal (FXY) | Forest City | IA | Dubuque Regional to Forest City Municipal |
| Galesburg Municipal (GBG) | Galesburg | IL | Dubuque Regional to Galesburg Municipal |
| Gladwin Zettel Memorial (GDW) | Gladwin | MI | Dubuque Regional to Gladwin Zettel Memorial |
| Gaylord Regional (GLR) | Gaylord | MI | Dubuque Regional to Gaylord Regional |
| Grand Rapids/Itasca County-Gordon Newstrom Field (GPZ) | Grand Rapids | MN | Dubuque Regional to Grand Rapids/Itasca County-Gordon Newstrom Field |
| Austin Straubel International (GRB) | Green Bay | WI | Dubuque Regional to Austin Straubel International |
| Greenville (GRE) | Greenville | IL | Dubuque Regional to Greenville |
| Grand Marais/Cook County (GRM) | Grand Marais | MN | Dubuque Regional to Grand Marais/Cook County |
| Gerald R Ford International (GRR) | Grand Rapids | MI | Dubuque Regional to Gerald R Ford International |
| Goshen Municipal (GSH) | Goshen | IN | Dubuque Regional to Goshen Municipal |
| Grantsburg Muni (GTG) | Grantsburg | WI | Dubuque Regional to Grantsburg Muni |
| Grissom Aeroplex/Arb (GUS) | Peru | IN | Dubuque Regional to Grissom Aeroplex/Arb |
| Gary/Chicago International (GYY) | GARY | IN | Dubuque Regional to Gary/Chicago International |
| Three Rivers Municipal Dr Haines (HAI) | Three Rivers | MI | Dubuque Regional to Three Rivers Municipal Dr Haines |
| Butler County Regional-Hogan Field (HAO) | Hamilton | OH | Dubuque Regional to Butler County Regional-Hogan Field |
| Range Regional (HIB) | Hibbing | MN | Dubuque Regional to Range Regional |
| Park Township (HLM) | Holland | MI | Dubuque Regional to Park Township |
| Huntingburg (HNB) | Huntingburg | IN | Dubuque Regional to Huntingburg |
| Huron Regional (HON) | Huron | SD | Dubuque Regional to Huron Regional |
| Hampton Municipal (HPT) | Hampton | IA | Dubuque Regional to Hampton Municipal |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Dubuque Regional to Harrisburg-Raleigh |
| Roscommon County - Blodgett Memorial (HTL) | Houghton Lake | MI | Dubuque Regional to Roscommon County - Blodgett Memorial |
| Humboldt Municipal (HUD) | Humboldt | IA | Dubuque Regional to Humboldt Municipal |
| Terre Haute Regional (HUF) | Terre Haute | IN | Dubuque Regional to Terre Haute Regional |
| Sawyer County (HYR) | Hayward | WI | Dubuque Regional to Sawyer County |
| Schenck Field (ICL) | Clarinda | IA | Dubuque Regional to Schenck Field |
| Ida Grove Municipal (IDG) | Ida Grove | IA | Dubuque Regional to Ida Grove Municipal |
| Iowa Falls Municipal (IFA) | Iowa Falls | IA | Dubuque Regional to Iowa Falls Municipal |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Dubuque Regional to Jacksonville Municipal |
| Greater Kankakee (IKK) | Kankakee | IL | Dubuque Regional to Greater Kankakee |
| Willmar Municipal/John L Rice Field (ILL) | Willmar | MN | Dubuque Regional to Willmar Municipal/John L Rice Field |
| Ford (IMT) | Iron Mountain | MI | Dubuque Regional to Ford |
| Indianapolis International (IND) | Indianapolis | IN | Dubuque Regional to Indianapolis International |
| Iowa City Municipal (IOW) | Iowa City | IA | Dubuque Regional to Iowa City Municipal |
| Kirksville Regional (IRK) | Kirksville | MO | Dubuque Regional to Kirksville Regional |
| Kirsch Municipal (IRS) | Sturgis | MI | Dubuque Regional to Kirsch Municipal |
| Schoolcraft County (ISQ) | Manistique | MI | Dubuque Regional to Schoolcraft County |
| Alexander Field South Wood County (ISW) | Wisconsin Rapids | WI | Dubuque Regional to Alexander Field South Wood County |
| Gogebic-Iron County (IWD) | Ironwood | MI | Dubuque Regional to Gogebic-Iron County |
| New Century Aircenter (JCI) | Olathe | KS | Dubuque Regional to New Century Aircenter |
| Jefferson City Memorial (JEF) | Jefferson City | MO | Dubuque Regional to Jefferson City Memorial |
| Joliet Regional Airport (JOT) | Joliet | IL | Dubuque Regional to Joliet Regional Airport |
| Souther Wisconsin Regional (JVL) | Janesville | WI | Dubuque Regional to Souther Wisconsin Regional |
| Jackson County/Reynolds Field (JXN) | Jackson | MI | Dubuque Regional to Jackson County/Reynolds Field |
| Kentland Municipal (KKT) | Kentland | IN | Dubuque Regional to Kentland Municipal |
| Purdue University (LAF) | Lafayette | IN | Dubuque Regional to Purdue University |
| Capital Region International (LAN) | Lansing | MI | Dubuque Regional to Capital Region International |
| Mason County (LDM) | Ludington | MI | Dubuque Regional to Mason County |
| Lincoln Municipal (LNK) | Lincoln | NE | Dubuque Regional to Lincoln Municipal |
| Tri-County Regional (LNR) | Lone Rock | WI | Dubuque Regional to Tri-County Regional |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Dubuque Regional to Lewis University Chicago Romeoville |
| Bowman Field (LOU) | Louisville | KY | Dubuque Regional to Bowman Field |
| La Porte Municipal (LPO) | La Porte | IN | Dubuque Regional to La Porte Municipal |
| Le Mars Municipal (LRJ) | Le Mars | IA | Dubuque Regional to Le Mars Municipal |
| La Crosse Regional (LSE) | La Crosse | WI | Dubuque Regional to La Crosse Regional |
| Cincinnati Municipal Lunken (LUK) | Cincinnati | OH | Dubuque Regional to Cincinnati Municipal Lunken |
| Lawrence Municipal (LWC) | Lawrence | KS | Dubuque Regional to Lawrence Municipal |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | Dubuque Regional to Lawrenceville-Vincennes International |
| Ely Municipal (LYU) | Ely | MN | Dubuque Regional to Ely Municipal |
| Quentin Aanenson Field (LYV) | Luverne | MN | Dubuque Regional to Quentin Aanenson Field |
| Manistee County-Blacker (MBL) | Manistee | MI | Dubuque Regional to Manistee County-Blacker |
| Mbs International (MBS) | Saginaw | MI | Dubuque Regional to Mbs International |
| Omar N Bradley (MBY) | Moberly | MO | Dubuque Regional to Omar N Bradley |
| Mackinac Island (MCD) | Mackinac Island | MI | Dubuque Regional to Mackinac Island |
| Kansas City International (MCI) | Kansas City | MO | Dubuque Regional to Kansas City International |
| Mason City Municipal (MCW) | Mason City | IA | Dubuque Regional to Mason City Municipal |
| Taylor County (MDF) | Medford | WI | Dubuque Regional to Taylor County |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | Dubuque Regional to Southern Illinois |
| Madison Municipal (MDN) | Madison | IN | Dubuque Regional to Madison Municipal |
| Chicago Midway International (MDW) | Chicago | IL | Dubuque Regional to Chicago Midway International |
| Marshfield Municipal (MFI) | Marshfield | WI | Dubuque Regional to Marshfield Municipal |
| Michigan City Municipal-Phillips Field (MGC) | Michigan City | IN | Dubuque Regional to Michigan City Municipal-Phillips Field |
| Dayton-Wright Brothers (MGY) | Dayton | OH | Dubuque Regional to Dayton-Wright Brothers |
| Mitchell Municipal (MHE) | Mitchell | SD | Dubuque Regional to Mitchell Municipal |
| Manhattan Regional (MHK) | Manhattan | KS | Dubuque Regional to Manhattan Regional |
| Marshall Memorial Municipal (MHL) | Marshall | MO | Dubuque Regional to Marshall Memorial Municipal |
| Crystal (MIC) | Minneapolis | MN | Dubuque Regional to Crystal |
| Delaware County Regional (MIE) | Muncie | IN | Dubuque Regional to Delaware County Regional |
| Omaha Millard (MIQ) | Omaha | NE | Dubuque Regional to Omaha Millard |
| Marshalltown Municipal (MIW) | Marshalltown | IA | Dubuque Regional to Marshalltown Municipal |
| Jackson Municipal (MJQ) | Jackson | MN | Dubuque Regional to Jackson Municipal |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | Dubuque Regional to Charles B Wheeler Downtown |
| Milwaukee Mitchell International (MKE) | Milwaukee | WI | Dubuque Regional to Milwaukee Mitchell International |
| Muskegon County (MKG) | Muskegon | MI | Dubuque Regional to Muskegon County |
| Mankato Regional (MKT) | Mankato | MN | Dubuque Regional to Mankato Regional |
| Quad City International (MLI) | Moline | IL | Dubuque Regional to Quad City International |
| Southwest Minnesota Regional Marshall/Ryan Field (MML) | Marshall | MN | Dubuque Regional to Southwest Minnesota Regional Marshall/Ryan Field |
| Menominee-Marinette Twin County (MNM) | Menominee | MI | Dubuque Regional to Menominee-Marinette Twin County |
| Mount Pleasant Municipal (MOP) | Mount Pleasant | MI | Dubuque Regional to Mount Pleasant Municipal |
| Morris Municipal/Charlie Schmidt Field (MOX) | Morris | MN | Dubuque Regional to Morris Municipal/Charlie Schmidt Field |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | Dubuque Regional to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Dubuque Regional to Macomb Municipal |
| Sawyer International (MQT) | Marquette | MI | Dubuque Regional to Sawyer International |
| Truax Field/Dane County Regional (MSN) | Madison | WI | Dubuque Regional to Truax Field/Dane County Regional |
| Minneapolis St Paul International/Wold-Chamberlain (MSP) | Minneapolis | MN | Dubuque Regional to Minneapolis St Paul International/Wold-Chamberlain |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Dubuque Regional to Coles County Memorial |
| Manitowoc County (MTW) | Manitowoc | WI | Dubuque Regional to Manitowoc County |
| Muscatine Municipal (MUT) | Muscatine | IA | Dubuque Regional to Muscatine Municipal |
| Montevideo-Chippewa County (MVE) | Montevideo | MN | Dubuque Regional to Montevideo-Chippewa County |
| Mount Vernon (MVN) | Mount Vernon | IL | Dubuque Regional to Mount Vernon |
| Williamson County Rgnl (MWA) | Marion | IL | Dubuque Regional to Williamson County Rgnl |
| Lawrence J Timmerman (MWC) | Milwaukee | WI | Dubuque Regional to Lawrence J Timmerman |
| Windom Municipal (MWM) | Windom | MN | Dubuque Regional to Windom Municipal |
| Middletown Regional - Hook Field (MWO) | Middletown | OH | Dubuque Regional to Middletown Regional - Hook Field |
| Marion Municipal (MZZ) | Marion | IN | Dubuque Regional to Marion Municipal |
| Jerry Tyler Memorial (NLE) | Niles | MI | Dubuque Regional to Jerry Tyler Memorial |
| Slayton Municipal (NSL) | Slayton | MN | Dubuque Regional to Slayton Municipal |
| Nevada Municipal (NVD) | Nevada | MO | Dubuque Regional to Nevada Municipal |
| L O Simenstad Municipal (OEO) | Osceola | WI | Dubuque Regional to L O Simenstad Municipal |
| Norfolk Regional/Karl Stefan Memorial Field (OFK) | Norfolk | NE | Dubuque Regional to Norfolk Regional/Karl Stefan Memorial Field |
| Johnson County Executive (OJC) | Olathe | KS | Dubuque Regional to Johnson County Executive |
| Kokomo Municipal (OKK) | Kokomo | IN | Dubuque Regional to Kokomo Municipal |
| Columbus Municipal (OLU) | Columbus | NE | Dubuque Regional to Columbus Municipal |
| Olney-Noble (OLY) | Olney-Noble | IL | Dubuque Regional to Olney-Noble |
| Eppley Airfield (OMA) | Omaha | NE | Dubuque Regional to Eppley Airfield |
| Winona Municipal-Max Conrad Field (ONA) | Winona | MN | Dubuque Regional to Winona Municipal-Max Conrad Field |
| Oskaloosa Municipal (OOA) | Oskaloosa | IA | Dubuque Regional to Oskaloosa Municipal |
| Chicago O'hare International (ORD) | Chicago | IL | Dubuque Regional to Chicago O'hare International |
| Grand Glaize Osage Beach (OSB) | Osage Beach | MO | Dubuque Regional to Grand Glaize Osage Beach |
| Oscoda-Wurtsmith (OSC) | Oscoda | MI | Dubuque Regional to Oscoda-Wurtsmith |
| Wittman Regional (OSH) | Oshkosh | WI | Dubuque Regional to Wittman Regional |
| Worthington Municipal (OTG) | Worthington | MN | Dubuque Regional to Worthington Municipal |
| Ottumwa Regional (OTM) | Ottumwa | IA | Dubuque Regional to Ottumwa Regional |
| Owatonna Degner Regional (OWA) | Owatonna | MN | Dubuque Regional to Owatonna Degner Regional |
| Owensboro-Daviess County Regional (OWB) | Owensboro | KY | Dubuque Regional to Owensboro-Daviess County Regional |
| Miami University (OXD) | Oxford | OH | Dubuque Regional to Miami University |
| Barkley Regional (PAH) | Paducah | KY | Dubuque Regional to Barkley Regional |
| Prairie Du Chien Municipal (PCD) | Prairie Duchien | WI | Dubuque Regional to Prairie Du Chien Municipal |
| Gen Wayne A Downing Peoria International (PIA) | Peoria | IL | Dubuque Regional to Gen Wayne A Downing Peoria International |
| Park Rapids Municipal-Konshok Field (PKD) | Park Rapids | MN | Dubuque Regional to Park Rapids Municipal-Konshok Field |
| Park Falls Municipal (PKF) | Park Falls | WI | Dubuque Regional to Park Falls Municipal |
| Pellston Regional of Emmet County (PLN) | Pellston | MI | Dubuque Regional to Pellston Regional of Emmet County |
| Plymouth Municipal (PLY) | Plymouth | IN | Dubuque Regional to Plymouth Municipal |
| Poplar Bluff Municipal (POF) | Poplar Bluff | MO | Dubuque Regional to Poplar Bluff Municipal |
| Pocahontas Municipal (POH) | Pocahontas | IA | Dubuque Regional to Pocahontas Municipal |
| Perry Municipal (PRO) | Perry | IA | Dubuque Regional to Perry Municipal |
| Prentice Municipal (PRW) | Prentice | WI | Dubuque Regional to Prentice Municipal |
| Oakland County International (PTK) | Pontiac | MI | Dubuque Regional to Oakland County International |
| Atkinson Municipal (PTS) | Pittsburg | KS | Dubuque Regional to Atkinson Municipal |
| Chicago Executive (PWK) | Chicago | IL | Dubuque Regional to Chicago Executive |
| Batten International (RAC) | Racine | WI | Dubuque Regional to Batten International |
| Fulton County (RCR) | Rochester | IN | Dubuque Regional to Fulton County |
| Nartron Field (RCT) | Reed City | MI | Dubuque Regional to Nartron Field |
| Chicago/Rockford International (RFD) | Rockford | IL | Dubuque Regional to Chicago/Rockford International |
| Rhinelander Oneida County (RHI) | Rhinelander | WI | Dubuque Regional to Rhinelander Oneida County |
| Richmond Municipal (RID) | Richmond | IN | Dubuque Regional to Richmond Municipal |
| Rice Lake Regional - Carl's Field (RIE) | Rice Lake | WI | Dubuque Regional to Rice Lake Regional - Carl's Field |
| Rolla Downtown (RLA) | Rolla | MO | Dubuque Regional to Rolla Downtown |
| New Richmond Regional (RNH) | New Richmond | WI | Dubuque Regional to New Richmond Regional |
| Jasper County (RNZ) | Rensselaer | IN | Dubuque Regional to Jasper County |
| Merrill Municipal (RRL) | Merrill | WI | Dubuque Regional to Merrill Municipal |
| Rochester International (RST) | Rochester | MN | Dubuque Regional to Rochester International |
| Spirit Lake Municipal (RTL) | Spirit Lake | IA | Dubuque Regional to Spirit Lake Municipal |
| Redwood Falls Municipal (RWF) | Redwood Falls | MN | Dubuque Regional to Redwood Falls Municipal |
| Sparta Community - Hunter Field (SAR) | Sparta | IL | Dubuque Regional to Sparta Community - Hunter Field |
| Sheboygan County Memorial (SBM) | Sheboygan | WI | Dubuque Regional to Sheboygan County Memorial |
| South Bend International (SBN) | South Bend | IN | Dubuque Regional to South Bend International |
| Scribner State (SCB) | Scribner | NE | Dubuque Regional to Scribner State |
| Louisville International/Standiford Field (SDF) | Louisville | KY | Dubuque Regional to Louisville International/Standiford Field |
| Freeman Municipal (SER) | Seymour | IN | Dubuque Regional to Freeman Municipal |
| Springfield/Branson National (SGF) | Springfield | MO | Dubuque Regional to Springfield/Branson National |
| Springfield/Beckley Municipal (SGH) | Springfield | OH | Dubuque Regional to Springfield/Beckley Municipal |
| Sikeston Memorial Municipal (SIK) | Sikeston | MO | Dubuque Regional to Sikeston Memorial Municipal |
| Sullivan County (SIV) | Sullivan | IN | Dubuque Regional to Sullivan County |
| Storm Lake Municipal (SLB) | Storm Lake | IA | Dubuque Regional to Storm Lake Municipal |
| Salem-Leckrone (SLO) | Salem | IL | Dubuque Regional to Salem-Leckrone |
| Smith Field (SMD) | Fort Wayne | IN | Dubuque Regional to Smith Field |
| Abraham Lincoln Capital (SPI) | Springfield | IL | Dubuque Regional to Abraham Lincoln Capital |
| Spencer Municipal/Northwest Iowa Regional (SPW) | Spencer | IA | Dubuque Regional to Spencer Municipal/Northwest Iowa Regional |
| Whiteside Co/Jos H Bittorf Field (SQI) | Sterling/Rock Falls | IL | Dubuque Regional to Whiteside Co/Jos H Bittorf Field |
| St Cloud Regional (STC) | St Cloud Regional | MN | Dubuque Regional to St Cloud Regional |
| Stevens Point Municipal (STE) | Stevens Point | WI | Dubuque Regional to Stevens Point Municipal |
| Rosecrans Memorial (STJ) | St Joseph | MO | Dubuque Regional to Rosecrans Memorial |
| Lambert St Louis International (STL) | St Louis | MO | Dubuque Regional to Lambert St Louis International |
| St Paul Downtown Holman Field (STP) | St Paul | MN | Dubuque Regional to St Paul Downtown Holman Field |
| Door County Cherryland (SUE) | Sturgeon Bay | WI | Dubuque Regional to Door County Cherryland |
| Spirit of St Louis (SUS) | St Louis | MO | Dubuque Regional to Spirit of St Louis |
| Richard I Bong Memorial (SUW) | Superior | WI | Dubuque Regional to Richard I Bong Memorial |
| Sioux Gateway/Col Bud Day Field (SUX) | Sioux City | IA | Dubuque Regional to Sioux Gateway/Col Bud Day Field |
| Waynesville St Robert Regional/Forney Field (TBN) | Fort Leonard Wood | MO | Dubuque Regional to Waynesville St Robert Regional/Forney Field |
| Toledo Executive (TDZ) | Toledo | OH | Dubuque Regional to Toledo Executive |
| Newton Municipal (TNU) | Newton | IA | Dubuque Regional to Newton Municipal |
| Toledo Express (TOL) | Toledo | OH | Dubuque Regional to Toledo Express |
| Philip Billard Municipal (TOP) | Topeka | KS | Dubuque Regional to Philip Billard Municipal |
| Trenton Municipal (TRX) | Trenton | MO | Dubuque Regional to Trenton Municipal |
| Cherry Capital (TVC) | Traverse City | MI | Dubuque Regional to Cherry Capital |
| Tuscola Area (TZC) | Caro | MI | Dubuque Regional to Tuscola Area |
| Waukesha County (UES) | Waukesha | WI | Dubuque Regional to Waukesha County |
| Chicago/Waukegan Regional (UGN) | Chicago | IL | Dubuque Regional to Chicago/Waukegan Regional |
| Baldwin Field/Quincy Regional (UIN) | Quincy | IL | Dubuque Regional to Baldwin Field/Quincy Regional |
| Waukon Municipal Airport (UKN) | Waukon | IA | Dubuque Regional to Waukon Municipal Airport |
| New Ulm Municipal (ULM) | New Ulm | MN | Dubuque Regional to New Ulm Municipal |
| Dodge County (UNU) | Juneau | WI | Dubuque Regional to Dodge County |
| Rolla National (VIH) | Rolla/Vichy | MO | Dubuque Regional to Rolla National |
| Vandalia Municipal (VLA) | Vandalia | IL | Dubuque Regional to Vandalia Municipal |
| Porter County Regional (VPZ) | Valparaiso | IN | Dubuque Regional to Porter County Regional |
| Roy Otten Memorial Airfield (VRS) | Versailles | MO | Dubuque Regional to Roy Otten Memorial Airfield |
| Walter A Duncan Field/Illinois Valley Regional (VYS) | Peru | IL | Dubuque Regional to Walter A Duncan Field/Illinois Valley Regional |
| Harry Stern (WAH) | Wahpeton | ND | Dubuque Regional to Harry Stern |
| West Branch Community (WBK) | West Branch | MI | Dubuque Regional to West Branch Community |
| Roben-Hood (WBR) | Big Rapids | MI | Dubuque Regional to Roben-Hood |
| Grand Geneva Resort (XES) | Lake Geneva | WI | Dubuque Regional to Grand Geneva Resort |
| Madison Municipal (XMD) | Madison | SD | Dubuque Regional to Madison Municipal |
| Willow Run (YIP) | Detroit | MI | Dubuque Regional to Willow Run |
| Chan Gurney Municipal (YKN) | Yankton | SD | Dubuque Regional to Chan Gurney Municipal |
| Windsor (YQG) | Windsor | ON | Dubuque Regional to Windsor |
