| Ardmore Municipal (ADM) | Ardmore | OK | Butler Memorial to Ardmore Municipal |
| Addison/Dallas (ADS) | Dallas | TX | Butler Memorial to Addison/Dallas |
| Ada Municipal (ADT) | Ada | OK | Butler Memorial to Ada Municipal |
| Albert Lea Municipal (AEL) | Albert Lea | MN | Butler Memorial to Albert Lea Municipal |
| Magnolia Municipal (AGO) | Magnolia | AR | Butler Memorial to Magnolia Municipal |
| Ardmore Downtown Executive (AHD) | Ardmore | OK | Butler Memorial to Ardmore Downtown Executive |
| Arapahoe Municipal (AHF) | Arapahoe | NE | Butler Memorial to Arapahoe Municipal |
| Atlantic Municipal (AIO) | Atlantic | IA | Butler Memorial to Atlantic Municipal |
| Lee C Fine Memorial (AIZ) | KAISER/LAKE OZARK | MO | Butler Memorial to Lee C Fine Memorial |
| St Louis Regional (ALN) | Alton | IL | Butler Memorial to St Louis Regional |
| Waterloo Regional (ALO) | Waterloo | IA | Butler Memorial to Waterloo Regional |
| Ames Municipal (AMW) | Ames | IA | Butler Memorial to Ames Municipal |
| Anthony Municipal (ANY) | Anthony | KS | Butler Memorial to Anthony Municipal |
| Walnut Ridge Regional (ARG) | Walnut Ridge | AR | Butler Memorial to Walnut Ridge Regional |
| Harrison County (ASL) | Marshall | TX | Butler Memorial to Harrison County |
| Antlers Municipal (ATE) | Antlers | OK | Butler Memorial to Antlers Municipal |
| Austin Municipal (AUM) | Austin | MN | Butler Memorial to Austin Municipal |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Butler Memorial to Chicago/Aurora Municipal |
| West Memphis Municipal (AWM) | West Memphis | AR | Butler Memorial to West Memphis Municipal |
| Algona Municipal (AXG) | Algona | IA | Butler Memorial to Algona Municipal |
| Altus/Quartz Mountain Regional (AXS) | Altus | OK | Butler Memorial to Altus/Quartz Mountain Regional |
| Broken Bow Municipal/Keith Glaze Field (BBW) | Broken Bow | NE | Butler Memorial to Broken Bow Municipal/Keith Glaze Field |
| Beech Factory (BEC) | Wichita | KS | Butler Memorial to Beech Factory |
| Beatrice Municipal (BIE) | Beatrice | NE | Butler Memorial to Beatrice Municipal |
| Branson (BKG) | Branson | MO | Butler Memorial to Branson |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | Butler Memorial to MidAmerica St Louis Scott AFB |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Butler Memorial to Central Illinois Regional at Bloomington Normal |
| Boone Municipal (BNW) | Boone | IA | Butler Memorial to Boone Municipal |
| Southeast Iowa Regional (BRL) | Burlington | IA | Butler Memorial to Southeast Iowa Regional |
| Cram Field (BUB) | Burwell | NE | Butler Memorial to Cram Field |
| Bartlesville Municipal (BVO) | Bartlesville | OK | Butler Memorial to Bartlesville Municipal |
| Batesville Regional (BVX) | Batesville | AR | Butler Memorial to Batesville Regional |
| Arkansas International (BYH) | Blytheville | AR | Butler Memorial to Arkansas International |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | Butler Memorial to Council Bluffs Municipal |
| Shalz Field (CBK) | Colby | KS | Butler Memorial to Shalz Field |
| Clinton Municipal (CCA) | Clinton | AR | Butler Memorial to Clinton Municipal |
| Northeast Iowa Regional (CCY) | Charles City | IA | Butler Memorial to Northeast Iowa Regional |
| Harrell Field (CDH) | Camden | AR | Butler Memorial to Harrell Field |
| Cessna Aircraft Field (CEA) | Wichita | KS | Butler Memorial to Cessna Aircraft Field |
| Kyle-Oakley Field (CEY) | Murray | KY | Butler Memorial to Kyle-Oakley Field |
| Coffeyville Municipal (CFV) | Coffeyville | KS | Butler Memorial to Coffeyville Municipal |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | Butler Memorial to Cape Girardeau Regional |
| Chickasha Municipal (CHK) | Chickasha | OK | Butler Memorial to Chickasha Municipal |
| The Eastern Iowa (CID) | Cedar Rapids | IA | Butler Memorial to The Eastern Iowa |
| Arthur N Neu (CIN) | Carroll | IA | Butler Memorial to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | Butler Memorial to Cairo Regional |
| Fletcher Field (CKM) | Clarksdale | MS | Butler Memorial to Fletcher Field |
| Outlaw Field (CKV) | Clarksville | TN | Butler Memorial to Outlaw Field |
| Clinton Regional (CLK) | Clinton | OK | Butler Memorial to Clinton Regional |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Butler Memorial to University of Illinois-Willard |
| Blosser Municipal (CNK) | Concordia | KS | Butler Memorial to Blosser Municipal |
| Chanute Martin Johnson (CNU) | Chanute | KS | Butler Memorial to Chanute Martin Johnson |
| Columbia Regional (COU) | Columbia | MO | Butler Memorial to Columbia Regional |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | Butler Memorial to St Louis Downtown |
| Z M Jack Stell Field (CRT) | Crossett | AR | Butler Memorial to Z M Jack Stell Field |
| Roscoe Turner (CRX) | Corinth | MS | Butler Memorial to Roscoe Turner |
| Clinton-Sherman (CSM) | Clinton | OK | Butler Memorial to Clinton-Sherman |
| Creston Municipal (CSQ) | Creston | IA | Butler Memorial to Creston Municipal |
| Canton Municipal (CTK) | Canton | SD | Butler Memorial to Canton Municipal |
| Cushing Municipal (CUH) | Cushing | OK | Butler Memorial to Cushing Municipal |
| Clinton Municipal (CWI) | Clinton | IA | Butler Memorial to Clinton Municipal |
| Dallas Love Field (DAL) | Dallas | TX | Butler Memorial to Dallas Love Field |
| Dubuque Regional (DBQ) | Dubuque | IA | Butler Memorial to Dubuque Regional |
| Dodge City Regional (DDC) | Dodge City | KS | Butler Memorial to Dodge City Regional |
| Decatur (DEC) | Decatur | IL | Butler Memorial to Decatur |
| Decorah Municipal (DEH) | Decorah | IA | Butler Memorial to Decorah Municipal |
| Sedalia Regional (DMO) | Sedalia | MO | Butler Memorial to Sedalia Regional |
| Denison Municipal (DNS) | Denison | IA | Butler Memorial to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | Butler Memorial to Vermilion Regional |
| Des Moines International (DSM) | Des Moines | IA | Butler Memorial to Des Moines International |
| Shreveport Downtown (DTN) | Shreveport | LA | Butler Memorial to Shreveport Downtown |
| Durant Regional - Eaker Field (DUA) | Durant | OK | Butler Memorial to Durant Regional - Eaker Field |
| Halliburton Field (DUC) | Duncan | OK | Butler Memorial to Halliburton Field |
| Davenport Municipal (DVN) | Davenport | IA | Butler Memorial to Davenport Municipal |
| Kearney Regional (EAR) | Kearney | NE | Butler Memorial to Kearney Regional |
| Webster City Municipal (EBS) | Webster City | IA | Butler Memorial to Webster City Municipal |
| El Dorado/Captain Jack Thomas Memorial (EDK) | El Dorado | KS | Butler Memorial to El Dorado/Captain Jack Thomas Memorial |
| Jefferson Municipal (EFW) | Jefferson | IA | Butler Memorial to Jefferson Municipal |
| South Arkansas Regional at Goodwin Field (ELD) | El Dorado | AR | Butler Memorial to South Arkansas Regional at Goodwin Field |
| Elk City Regional Business (ELK) | Elk City | OK | Butler Memorial to Elk City Regional Business |
| Emporia Municipal (EMP) | Emporia | KS | Butler Memorial to Emporia Municipal |
| Centralia Municipal (ENL) | Centralia | IL | Butler Memorial to Centralia Municipal |
| Keokuk Municipal (EOK) | Keokuk | IA | Butler Memorial to Keokuk Municipal |
| Neosho Hugh Robinson (EOS) | Neosho | MO | Butler Memorial to Neosho Hugh Robinson |
| Estherville Municipal (EST) | Estherville | IA | Butler Memorial to Estherville Municipal |
| Evansville Regional (EVV) | Evansville | IN | Butler Memorial to Evansville Regional |
| Newton City County (EWK) | Newton | KS | Butler Memorial to Newton City County |
| Farmington Regional (FAM) | Farmington | MO | Butler Memorial to Farmington Regional |
| Fairbury Municipal (FBY) | Fairbury | NE | Butler Memorial to Fairbury Municipal |
| Forrest City Municipal (FCY) | Forrest City | AR | Butler Memorial to Forrest City Municipal |
| Frederick Regional (FDR) | Frederick | OK | Butler Memorial to Frederick Regional |
| Albertus (FEP) | Freeport | IL | Butler Memorial to Albertus |
| Fremont Municipal (FET) | Fremont | NE | Butler Memorial to Fremont Municipal |
| Fairfield Municipal (FFL) | Fairfield | IA | Butler Memorial to Fairfield Municipal |
| Marion County Regional (FLP) | Flippin | AR | Butler Memorial to Marion County Regional |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | Butler Memorial to Sherman Army Airfield |
| Fort Madison Municipal (FMS) | Fort Madison | IA | Butler Memorial to Fort Madison Municipal |
| Fort Dodge Regional (FOD) | Fort Dodge | IA | Butler Memorial to Fort Dodge Regional |
| Topeka Regional (FOE) | Topeka | KS | Butler Memorial to Topeka Regional |
| Fairmont Municipal (FRM) | Fairmont | MN | Butler Memorial to Fairmont Municipal |
| Sioux Falls Regional, Joe Foss Field (FSD) | Sioux Falls | SD | Butler Memorial to Sioux Falls Regional, Joe Foss Field |
| Fort Smith Regional (FSM) | Fort Smith | AR | Butler Memorial to Fort Smith Regional |
| Branson West Municipal - Emerson Field (FWB) | Branson West | MO | Butler Memorial to Branson West Municipal - Emerson Field |
| Forest City Municipal (FXY) | Forest City | IA | Butler Memorial to Forest City Municipal |
| Drake Field (FYV) | Fayetteville | AR | Butler Memorial to Drake Field |
| Gage (GAG) | Gage | OK | Butler Memorial to Gage |
| Great Bend Municipal (GBD) | Great Bend | KS | Butler Memorial to Great Bend Municipal |
| Galesburg Municipal (GBG) | Galesburg | IL | Butler Memorial to Galesburg Municipal |
| Garden City Regional (GCK) | Garden City | KS | Butler Memorial to Garden City Regional |
| Gainesville Municipal (GLE) | Gainesville | TX | Butler Memorial to Gainesville Municipal |
| Greenville Mid-Delta (GLH) | Greenville | MS | Butler Memorial to Greenville Mid-Delta |
| Guthrie-Edmond Regional (GOK) | Guthrie | OK | Butler Memorial to Guthrie-Edmond Regional |
| Greenville (GRE) | Greenville | IL | Butler Memorial to Greenville |
| Central Nebraska Regional (GRI) | Grand Island | NE | Butler Memorial to Central Nebraska Regional |
| Majors (GVT) | Greenville | TX | Butler Memorial to Majors |
| Hobart Regional (HBR) | Hobart | OK | Butler Memorial to Hobart Regional |
| Brewster Field (HDE) | Holdrege | NE | Butler Memorial to Brewster Field |
| Thompson-Robbins (HEE) | Helena/West Helena | AR | Butler Memorial to Thompson-Robbins |
| Blytheville Municipal (HKA) | Blytheville | AR | Butler Memorial to Blytheville Municipal |
| Hill City Municipal (HLC) | Hill City | KS | Butler Memorial to Hill City Municipal |
| Memorial Field (HOT) | Hot Springs | AR | Butler Memorial to Memorial Field |
| Hampton Municipal (HPT) | Hampton | IA | Butler Memorial to Hampton Municipal |
| Boone County Regional (HRO) | Harrison | AR | Butler Memorial to Boone County Regional |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Butler Memorial to Harrisburg-Raleigh |
| Hastings Municipal (HSI) | Hastings | NE | Butler Memorial to Hastings Municipal |
| Humboldt Municipal (HUD) | Humboldt | IA | Butler Memorial to Humboldt Municipal |
| Terre Haute Regional (HUF) | Terre Haute | IN | Butler Memorial to Terre Haute Regional |
| Stan Stamper Municipal (HUJ) | Hugo | OK | Butler Memorial to Stan Stamper Municipal |
| Hutchinson Regional (HUT) | Hutchinson | KS | Butler Memorial to Hutchinson Regional |
| Hays Regional (HYS) | Hays | KS | Butler Memorial to Hays Regional |
| Schenck Field (ICL) | Clarinda | IA | Butler Memorial to Schenck Field |
| Wichita Eisenhower National (ICT) | Wichita | KS | Butler Memorial to Wichita Eisenhower National |
| Ida Grove Municipal (IDG) | Ida Grove | IA | Butler Memorial to Ida Grove Municipal |
| Independence Municipal (IDP) | Independence | KS | Butler Memorial to Independence Municipal |
| Iowa Falls Municipal (IFA) | Iowa Falls | IA | Butler Memorial to Iowa Falls Municipal |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Butler Memorial to Jacksonville Municipal |
| Greater Kankakee (IKK) | Kankakee | IL | Butler Memorial to Greater Kankakee |
| Iowa City Municipal (IOW) | Iowa City | IA | Butler Memorial to Iowa City Municipal |
| Kirksville Regional (IRK) | Kirksville | MO | Butler Memorial to Kirksville Regional |
| Jonesboro Municipal (JBR) | Jonesboro | AR | Butler Memorial to Jonesboro Municipal |
| New Century Aircenter (JCI) | Olathe | KS | Butler Memorial to New Century Aircenter |
| Jefferson City Memorial (JEF) | Jefferson City | MO | Butler Memorial to Jefferson City Memorial |
| Joplin Regional (JLN) | Joplin | MO | Butler Memorial to Joplin Regional |
| Joliet Regional Airport (JOT) | Joliet | IL | Butler Memorial to Joliet Regional Airport |
| Kickapoo Downtown (KIP) | Wichita Falls | TX | Butler Memorial to Kickapoo Downtown |
| Kentland Municipal (KKT) | Kentland | IN | Butler Memorial to Kentland Municipal |
| Kennett Memorial (KNT) | Kennett | MO | Butler Memorial to Kennett Memorial |
| Fort Sill Regional Lawton (LAW) | Lawton | OK | Butler Memorial to Fort Sill Regional Lawton |
| North Platte Regional/Lee Bird Field (LBF) | North Platte | NE | Butler Memorial to North Platte Regional/Lee Bird Field |
| Liberal Mid-America Regional (LBL) | Liberal | KS | Butler Memorial to Liberal Mid-America Regional |
| Bill & Hillary Clinton National/Adams Field (LIT) | Little Rock | AR | Butler Memorial to Bill & Hillary Clinton National/Adams Field |
| Lincoln Municipal (LNK) | Lincoln | NE | Butler Memorial to Lincoln Municipal |
| Tri-County Regional (LNR) | Lone Rock | WI | Butler Memorial to Tri-County Regional |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Butler Memorial to Lewis University Chicago Romeoville |
| Le Mars Municipal (LRJ) | Le Mars | IA | Butler Memorial to Le Mars Municipal |
| Lawrence Municipal (LWC) | Lawrence | KS | Butler Memorial to Lawrence Municipal |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | Butler Memorial to Lawrenceville-Vincennes International |
| Jim Kelly Field (LXN) | Lexington | NE | Butler Memorial to Jim Kelly Field |
| Lyons-Rice County Muni (LYO) | Lyons | KS | Butler Memorial to Lyons-Rice County Muni |
| Quentin Aanenson Field (LYV) | Luverne | MN | Butler Memorial to Quentin Aanenson Field |
| Malden Regional (MAW) | Malden | MO | Butler Memorial to Malden Regional |
| Omar N Bradley (MBY) | Moberly | MO | Butler Memorial to Omar N Bradley |
| Kansas City International (MCI) | Kansas City | MO | Butler Memorial to Kansas City International |
| Mccook Ben Nelson Regional (MCK) | Mc Cook | NE | Butler Memorial to Mccook Ben Nelson Regional |
| Mason City Municipal (MCW) | Mason City | IA | Butler Memorial to Mason City Municipal |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | Butler Memorial to Southern Illinois |
| Memphis International (MEM) | Memphis | TN | Butler Memorial to Memphis International |
| Manhattan Regional (MHK) | Manhattan | KS | Butler Memorial to Manhattan Regional |
| Marshall Memorial Municipal (MHL) | Marshall | MO | Butler Memorial to Marshall Memorial Municipal |
| Miami Regional (MIO) | Miami | OK | Butler Memorial to Miami Regional |
| Omaha Millard (MIQ) | Omaha | NE | Butler Memorial to Omaha Millard |
| Marshalltown Municipal (MIW) | Marshalltown | IA | Butler Memorial to Marshalltown Municipal |
| Jackson Municipal (MJQ) | Jackson | MN | Butler Memorial to Jackson Municipal |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | Butler Memorial to Charles B Wheeler Downtown |
| Mckellar Sipes Regional (MKL) | Jackson | TN | Butler Memorial to Mckellar Sipes Regional |
| Muskogee-Davis Regional (MKO) | Muskogee | OK | Butler Memorial to Muskogee-Davis Regional |
| Mcalester Regional (MLC) | Mc Alester | OK | Butler Memorial to Mcalester Regional |
| Quad City International (MLI) | Moline | IL | Butler Memorial to Quad City International |
| Marks/Selfs (MMS) | Marks | MS | Butler Memorial to Marks/Selfs |
| Petit Jean Park (MPJ) | Morrilton | AR | Butler Memorial to Petit Jean Park |
| Mcpherson (MPR) | McPherson | KS | Butler Memorial to Mcpherson |
| Mount Pleasant Regional (MPS) | Mount Pleasant | TX | Butler Memorial to Mount Pleasant Regional |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | Butler Memorial to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Butler Memorial to Macomb Municipal |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Butler Memorial to Coles County Memorial |
| Muscatine Municipal (MUT) | Muscatine | IA | Butler Memorial to Muscatine Municipal |
| Mount Vernon (MVN) | Mount Vernon | IL | Butler Memorial to Mount Vernon |
| Williamson County Rgnl (MWA) | Marion | IL | Butler Memorial to Williamson County Rgnl |
| Windom Municipal (MWM) | Windom | MN | Butler Memorial to Windom Municipal |
| Manila Municipal (MXA) | Manila | AR | Butler Memorial to Manila Municipal |
| Monticello Regional (MXO) | Monticello | IA | Butler Memorial to Monticello Regional |
| Millington Regional Jetport (NQA) | Millington | TN | Butler Memorial to Millington Regional Jetport |
| Norfolk Regional/Karl Stefan Memorial Field (OFK) | Norfolk | NE | Butler Memorial to Norfolk Regional/Karl Stefan Memorial Field |
| Johnson County Executive (OJC) | Olathe | KS | Butler Memorial to Johnson County Executive |
| Will Rogers World (OKC) | Oklahoma City | OK | Butler Memorial to Will Rogers World |
| Okmulgee Regional (OKM) | Okmulgee | OK | Butler Memorial to Okmulgee Regional |
| Columbus Municipal (OLU) | Columbus | NE | Butler Memorial to Columbus Municipal |
| Olive Branch (OLV) | Olive Branch | MS | Butler Memorial to Olive Branch |
| Olney-Noble (OLY) | Olney-Noble | IL | Butler Memorial to Olney-Noble |
| Eppley Airfield (OMA) | Omaha | NE | Butler Memorial to Eppley Airfield |
| The O'neill Municipal-John L Baker Field (ONL) | O'neill | NE | Butler Memorial to The O'neill Municipal-John L Baker Field |
| Oskaloosa Municipal (OOA) | Oskaloosa | IA | Butler Memorial to Oskaloosa Municipal |
| Grand Glaize Osage Beach (OSB) | Osage Beach | MO | Butler Memorial to Grand Glaize Osage Beach |
| Worthington Municipal (OTG) | Worthington | MN | Butler Memorial to Worthington Municipal |
| Ottumwa Regional (OTM) | Ottumwa | IA | Butler Memorial to Ottumwa Regional |
| University of Oklahoma Max Westheimer (OUN) | Norman | OK | Butler Memorial to University of Oklahoma Max Westheimer |
| Owensboro-Daviess County Regional (OWB) | Owensboro | KY | Butler Memorial to Owensboro-Daviess County Regional |
| Barkley Regional (PAH) | Paducah | KY | Butler Memorial to Barkley Regional |
| Pine Bluff Regional-Grider Field (PBF) | Pine Bluff | AR | Butler Memorial to Pine Bluff Regional-Grider Field |
| Prairie Du Chien Municipal (PCD) | Prairie Duchien | WI | Butler Memorial to Prairie Du Chien Municipal |
| Paragould/Kirk Field (PGR) | Paragould | AR | Butler Memorial to Paragould/Kirk Field |
| Henry County (PHT) | Paris | TN | Butler Memorial to Henry County |
| Gen Wayne A Downing Peoria International (PIA) | Peoria | IL | Butler Memorial to Gen Wayne A Downing Peoria International |
| M. Graham Clark Downtown (PLK) | Point Lookout | MO | Butler Memorial to M. Graham Clark Downtown |
| Ponca City Regional (PNC) | Ponca City | OK | Butler Memorial to Ponca City Regional |
| North Texas Regional/Perrin Field (PNX) | Sherman/Denison | TX | Butler Memorial to North Texas Regional/Perrin Field |
| Poplar Bluff Municipal (POF) | Poplar Bluff | MO | Butler Memorial to Poplar Bluff Municipal |
| Pocahontas Municipal (POH) | Pocahontas | IA | Butler Memorial to Pocahontas Municipal |
| Parsons/Tri-City (PPF) | Parsons | KS | Butler Memorial to Parsons/Tri-City |
| Perry Municipal (PRO) | Perry | IA | Butler Memorial to Perry Municipal |
| Cox Field (PRX) | Paris | TX | Butler Memorial to Cox Field |
| Atkinson Municipal (PTS) | Pittsburg | KS | Butler Memorial to Atkinson Municipal |
| Pratt Regional (PTT) | Pratt | KS | Butler Memorial to Pratt Regional |
| Wiley Post (PWA) | Oklahoma City | OK | Butler Memorial to Wiley Post |
| Rooks County Regional (RCP) | Stockton | KS | Butler Memorial to Rooks County Regional |
| Chicago/Rockford International (RFD) | Rockford | IL | Butler Memorial to Chicago/Rockford International |
| Robert S Kerr (RKR) | Poteau | OK | Butler Memorial to Robert S Kerr |
| Rolla Downtown (RLA) | Rolla | MO | Butler Memorial to Rolla Downtown |
| Rogers Executive/Carter Field (ROG) | Rogers | AR | Butler Memorial to Rogers Executive/Carter Field |
| Russell Municipal (RSL) | Russell | KS | Butler Memorial to Russell Municipal |
| Rochester International (RST) | Rochester | MN | Butler Memorial to Rochester International |
| Spirit Lake Municipal (RTL) | Spirit Lake | IA | Butler Memorial to Spirit Lake Municipal |
| Tulsa/Richard Lloyd Jones Jr (RVS) | Tulsa | OK | Butler Memorial to Tulsa/Richard Lloyd Jones Jr |
| Sparta Community - Hunter Field (SAR) | Sparta | IL | Butler Memorial to Sparta Community - Hunter Field |
| Scribner State (SCB) | Scribner | NE | Butler Memorial to Scribner State |
| Springfield/Branson National (SGF) | Springfield | MO | Butler Memorial to Springfield/Branson National |
| Stuttgart Municipal (SGT) | Stuttgart | AR | Butler Memorial to Stuttgart Municipal |
| Sikeston Memorial Municipal (SIK) | Sikeston | MO | Butler Memorial to Sikeston Memorial Municipal |
| Sullivan County (SIV) | Sullivan | IN | Butler Memorial to Sullivan County |
| Storm Lake Municipal (SLB) | Storm Lake | IA | Butler Memorial to Storm Lake Municipal |
| Smith Field/Siloam Springs Municipal (SLG) | Siloam Springs | AR | Butler Memorial to Smith Field/Siloam Springs Municipal |
| Salina Regional (SLN) | Salina | KS | Butler Memorial to Salina Regional |
| Salem-Leckrone (SLO) | Salem | IL | Butler Memorial to Salem-Leckrone |
| Sulphur Springs Municipal (SLR) | Sulphur Springs | TX | Butler Memorial to Sulphur Springs Municipal |
| Shawnee Regional (SNL) | Shawnee | OK | Butler Memorial to Shawnee Regional |
| Abraham Lincoln Capital (SPI) | Springfield | IL | Butler Memorial to Abraham Lincoln Capital |
| Wichita Falls Regional/Sheppard AFB (SPS) | Wichita Falls | TX | Butler Memorial to Wichita Falls Regional/Sheppard AFB |
| Spencer Municipal/Northwest Iowa Regional (SPW) | Spencer | IA | Butler Memorial to Spencer Municipal/Northwest Iowa Regional |
| Springdale Municipal (SPZ) | Springdale | AR | Butler Memorial to Springdale Municipal |
| Whiteside Co/Jos H Bittorf Field (SQI) | Sterling/Rock Falls | IL | Butler Memorial to Whiteside Co/Jos H Bittorf Field |
| Searcy Municipal (SRC) | Searcy | AR | Butler Memorial to Searcy Municipal |
| Rosecrans Memorial (STJ) | St Joseph | MO | Butler Memorial to Rosecrans Memorial |
| Lambert St Louis International (STL) | St Louis | MO | Butler Memorial to Lambert St Louis International |
| Stroud Municipal (SUD) | Stroud | OK | Butler Memorial to Stroud Municipal |
| Spirit of St Louis (SUS) | St Louis | MO | Butler Memorial to Spirit of St Louis |
| Sioux Gateway/Col Bud Day Field (SUX) | Sioux City | IA | Butler Memorial to Sioux Gateway/Col Bud Day Field |
| Stillwater Regional (SWO) | Stillwater | OK | Butler Memorial to Stillwater Regional |
| Waynesville St Robert Regional/Forney Field (TBN) | Fort Leonard Wood | MO | Butler Memorial to Waynesville St Robert Regional/Forney Field |
| Newton Municipal (TNU) | Newton | IA | Butler Memorial to Newton Municipal |
| Philip Billard Municipal (TOP) | Topeka | KS | Butler Memorial to Philip Billard Municipal |
| Terrell Municipal (TRL) | Terrell | TX | Butler Memorial to Terrell Municipal |
| Trenton Municipal (TRX) | Trenton | MO | Butler Memorial to Trenton Municipal |
| Tulsa International (TUL) | Tulsa | OK | Butler Memorial to Tulsa International |
| Texarkana Regional/Webb Field (TXK) | Texarkana | AR | Butler Memorial to Texarkana Regional/Webb Field |
| Everett-Stewart Regional (UCY) | Union City | TN | Butler Memorial to Everett-Stewart Regional |
| Baldwin Field/Quincy Regional (UIN) | Quincy | IL | Butler Memorial to Baldwin Field/Quincy Regional |
| Waukon Municipal Airport (UKN) | Waukon | IA | Butler Memorial to Waukon Municipal Airport |
| University-Oxford (UOX) | Oxford | MS | Butler Memorial to University-Oxford |
| Tunica Municipal (UTM) | Tunica | MS | Butler Memorial to Tunica Municipal |
| Rolla National (VIH) | Rolla/Vichy | MO | Butler Memorial to Rolla National |
| Vandalia Municipal (VLA) | Vandalia | IL | Butler Memorial to Vandalia Municipal |
| Roy Otten Memorial Airfield (VRS) | Versailles | MO | Butler Memorial to Roy Otten Memorial Airfield |
| Walter A Duncan Field/Illinois Valley Regional (VYS) | Peru | IL | Butler Memorial to Walter A Duncan Field/Illinois Valley Regional |
| Enid Woodring Regional (WDG) | Enid | OK | Butler Memorial to Enid Woodring Regional |
| Strother Field (WLD) | Winfield | KS | Butler Memorial to Strother Field |
| Baxter County (WMH) | Mountain Home | AR | Butler Memorial to Baxter County |
| West Woodward (WWR) | Woodward | OK | Butler Memorial to West Woodward |
| Northwest Arkansas Regional (XNA) | Fayetteville/Springdale | AR | Butler Memorial to Northwest Arkansas Regional |
| Chan Gurney Municipal (YKN) | Yankton | SD | Butler Memorial to Chan Gurney Municipal |
