| Ada Regional Airport | Ada | ADT · KADH | 2 |
| Akron Fulton International Airport | Akron | AKC · KAKR | 1 |
| Alamogordo White Sands Regional Airport | Alamogordo | ALM · KALM | 1 |
| Alice International Airport | Alice | ALI · KALI | 2 |
| Allegheny County Airport | Pittsburgh | AGC · KAGC | 3 |
| Allen Army Airfield | Delta Junction Ft Greely | BIG · PABI | 3 |
| Altus Air Force Base | Altus | LTS · KLTS | 3 |
| Anderson Regional Airport | Anderson | AND · KAND | 2 |
| Angelina County Airport | Lufkin | LFK · KLFK | 2 |
| Annette Island Airport | Metlakatla | ANN · PANT | 2 |
| Anniston Regional Airport | Anniston | ANB · KANB | 1 |
| Arkansas International Airport | Blytheville | BYH · KBYH | 1 |
| Astoria Regional Airport | Astoria | AST · KAST | 2 |
| Athens Ben Epps Airport | Athens | AHN · KAHN | 2 |
| Aurora State Airport | Aurora | KUAO | 1 |
| Baker City Municipal Airport | Baker City | BKE · KBKE | 3 |
| Bakersfield International Airport | Bakersfield | KL45 | 1 |
| Barking Sands Airport | Kekaha | BKH · PHBK | 1 |
| Barksdale Air Force Base | Bossier City | BAD · KBAD | 1 |
| Barstow Daggett Airport | Daggett | DAG · KDAG | 2 |
| Battle Creek Executive Airport at Kellogg Field | Battle Creek | BTL · KBTL | 3 |
| Baudette International Airport | Baudette | BDE · KBDE | 2 |
| Beale Air Force Base | Beale Air Force Base | BAB · KBAB | 1 |
| Beaufort MCAS - Merritt Field | Beaufort | KNBC | 2 |
| Beauregard Regional Airport | DeRidder | DRI · KDRI | 2 |
| Beaver County Airport | Beaver Falls | BFP · KBVI | 1 |
| Bemidji Regional Airport | Bemidji | BJI · KBJI | 2 |
| Beverly Regional Airport | Beverly / Danvers | BVY · KBVY | 2 |
| Bicycle Lake Army Air Field | Fort Irwin/Barstow | BYS · KBYS | 2 |
| Biggs Army Air Field (Fort Bliss) | Fort Bliss/El Paso | BIF · KBIF | 1 |
| Birchwood Airport | Birchwood | PABV | 2 |
| Bisbee Douglas International Airport | Douglas Bisbee | DUG · KDUG | 2 |
| Blythe Airport | Blythe | BLH · KBLH | 2 |
| Bob Sikes Airport | Crestview | CEW · KCEW | 1 |
| Boca Raton Airport | Boca Raton | BCT · KBCT | 1 |
| Bowerman Airport | Hoquiam | HQM · KHQM | 1 |
| Bowling Green Warren County Regional Airport | Bowling Green | BWG · KBWG | 2 |
| Bowman Field | Louisville | LOU · KLOU | 2 |
| Bremerton National Airport | Bremerton | PWT · KPWT | 1 |
| Brown Field Municipal Airport | San Diego | SDM · KSDM | 2 |
| Brunswick Executive Airport | Brunswick | NHZ · KBXM | 1 |
| Bryce Canyon Airport | Bryce Canyon | BCE · KBCE | 1 |
| Buckley Space Force Base | Aurora | BFK · KBKF | 1 |
| Burke Lakefront Airport | Cleveland | BKL · KBKL | 2 |
| Burley Municipal Airport | Burley | BYI · KBYI | 2 |
| Burns Municipal Airport | Burns | BNO · KBNO | 2 |
| Butts AAF (Fort Carson) Air Field | Fort Carson | FCS · KFCS | 1 |
| Cairns AAF (Fort Rucker) Air Field | Fort Rucker/Ozark | OZR · KOZR | 2 |
| California City Municipal Airport | California City | KL71 | 1 |
| Camarillo Airport | Camarillo | KCMA | 2 |
| Camp Pendleton MCAS (Munn Field) Airport | Oceanside | KNFG | 1 |
| Campbell Army Airfield (Fort Campbell) | Fort Campbell | HOP · KHOP | 2 |
| Cannon Air Force Base | Clovis | CVS · KCVS | 2 |
| Cape Canaveral SFS Skid Strip | Cocoa Beach | KXMR | 1 |
| Cape May County Airport | Wildwood | WWD · KWWD | 2 |
| Cape Newenham LRRS Airport | Cape Newenham | EHM · PAEH | 1 |
| Cape Romanzof LRRS Airport | Cape Romanzof | CZF · PACZ | 1 |
| Caribou Municipal Airport | Caribou | CAR · KCAR | 2 |
| Carson Airport | Carson City | CSN · KCXP | 1 |
| Castle Airport | Merced | MER · KMER | 1 |
| Cecil Airport | Jacksonville | VQQ · KVQQ | 4 |
| Centennial Airport | Denver | APA · KAPA | 3 |
| Central Kentucky Regional Airport | Richmond | KI39 | 1 |
| Chan Gurney Municipal Airport | Yankton | YKN · KYKN | 2 |
| Chandler Field | Alexandria | AXN · KAXN | 2 |
| Chanute Martin Johnson Airport | Chanute | CNU · KCNU | 1 |
| Charles B. Wheeler Downtown Airport | Kansas City | MKC · KMKC | 2 |
| Chautauqua County-Jamestown Airport | Jamestown | JHW · KJHW | 2 |
| Cherry Point MCAS / Cunningham Field/ | Cherry Point | KNKT | 4 |
| Chicago Executive Airport | Chicago/Prospect Heights/Wheeling | PWK | 2 |
| Childress Municipal Airport | Childress | CDS · KCDS | 2 |
| China Lake Naws (Armitage Field) Airport | China Lake | KNID | 3 |
| Clear Airport | Clear | PACL | 1 |
| Cobb County International Airport-McCollum Field | Atlanta | KRYY | 1 |
| Coeur D'Alene Airport - Pappy Boyington Field | Coeur d'Alene | COE · KCOE | 2 |
| Coleman A. Young Municipal Airport | Detroit | DET | 1 |
| Columbia Gorge Regional Airport | Dallesport / The Dalles | DLS · KDLS | 2 |
| Columbus Air Force Base | Columbus | CBM · KCBM | 3 |
| Columbus Municipal Airport | Columbus | CLU · KBAK | 2 |
| Columbus Municipal Airport | Columbus | OLU · KOLU | 2 |
| Concord Municipal Airport | Concord | CON · KCON | 2 |
| Conroe-North Houston Regional Airport | Houston | CXO · KCXO | 2 |
| Corvallis Municipal Airport | Corvallis | CVO · KCVO | 2 |
| Cox Field | Paris | PRX · KPRX | 3 |
| Crater Lake-Klamath Regional Airport | Klamath Falls | LMT · KLMT | 2 |
| Crossville Memorial Airport Whitson Field | Crossville | CSV · KCSV | 1 |
| Curtis Field | Brady | BBD · KBBD | 1 |
| Cut Bank International Airport | Cut Bank | CTB · KCTB | 2 |
| Cuyahoga County Airport | Cleveland | CGF · KCGF | 1 |
| Dalhart Municipal Airport | Dalhart | DHT · KDHT | 2 |
| Danbury Municipal Airport | Danbury | DXR · KDXR | 2 |
| Daniel Field | Augusta | DNL · KDNL | 2 |
| Danville Regional Airport | Danville | DAN · KDAN | 2 |
| Davis Monthan Air Force Base | Tucson | DMA · KDMA | 1 |
| Davison Army Air Field | Fort Belvoir | DAA · KDAA | 1 |
| Del Rio International Airport | Del Rio | DRT · KDRT | 1 |
| Delaware County Johnson Field | Muncie | MIE · KMIE | 2 |
| Deming Municipal Airport | Deming | DMN · KDMN | 2 |
| Derby Field | Lovelock | LOL · KLOL | 2 |
| Desert Rock Airport | Mercury | DRA · KDRA | 1 |