| Willow Run Airport | Detroit | YIP · KYIP | 2 |
| Wilmington Airpark | Wilmington | ILN · KILN | 2 |
| Winkler County Airport | Wink | INK · KINK | 2 |
| Winnemucca Municipal Airport | Winnemucca | WMC · KWMC | 2 |
| Winslow Lindbergh Regional Airport | Winslow | INW · KINW | 2 |
| Wittman Regional Airport | Oshkosh | OSH · KOSH | 4 |
| Worland Municipal Airport | Worland | WRL · KWRL | 3 |
| Wright-Patterson Air Force Base | Dayton | FFO · KFFO | 2 |
| Youngstown Warren Regional Airport | Youngstown/Warren | YNG · KYNG | 3 |
| Yuba County Airport | Marysville | MYV · KMYV | 2 |
| Zanesville Municipal Airport | Zanesville | ZZV · KZZV | 2 |
| A L Mangham Jr. Regional Airport | Nacogdoches | OCH · KOCH | 1 |
| Accomack County Airport | Melfa | MFV · KMFV | 1 |
| Addington Field / Elizabethtown Regional Airport | Elizabethtown | EKX · KEKX | 1 |
| Addison Airport | Dallas | ADS · KADS | 1 |
| Afton Municipal Airport | Afton | AFO · KAFO | 1 |
| Aiken Regional Airport | Aiken | AIK · KAIK | 2 |
| Ainsworth Regional Airport | Ainsworth | ANW · KANW | 2 |
| AJ Eisenberg Airport | Oak Harbor | ODW · KOKH | 1 |
| Albert Lea Municipal Airport | Albert Lea | AEL · KAEL | 2 |
| Albert S Nader Regional Airport | Oneonta | ONH | 1 |
| Albert Whitted Airport | St Petersburg | SPG · KSPG | 2 |
| Albertus Airport | Freeport | FEP · KFEP | 3 |
| Albertville Regional Airport/Thomas J Brumlik Field | Albertville | KBFZ | 1 |
| Alexander Field South Wood County Airport | Wisconsin Rapids | ISW · KISW | 3 |
| Algona Municipal Airport | Algona | AXG · KAXA | 2 |
| Allen C Perkinson Blackstone Army Air Field | Blackstone | BKT · KBKT | 1 |
| Alpine Casparis Municipal Airport | Alpine | ALE | 2 |
| Altus Quartz Mountain Regional Airport | Altus | AXS · KAXS | 1 |
| Amedee Army Air Field | Herlong | AHC · KAHC | 1 |
| Amery Municipal Airport | Amery | AHH · KAHH | 1 |
| Ames Municipal Airport | Ames | AMW · KAMW | 2 |
| Anacostia USN Heliport | Washington | KNDV | 1 |
| Anderson Municipal Darlington Field | Anderson | AID · KAID | 2 |
| Angel Fire Airport | Angel Fire | AXX · KAXX | 1 |
| Animas Air Park | Durango | AMK | 1 |
| Ann Arbor Municipal Airport | Ann Arbor | ARB · KARB | 1 |
| Anthony Municipal Airport | Anthony | ANY · KANY | 2 |
| Antlers Municipal Airport | Antlers | ATE | 1 |
| Antrim County Airport | Bellaire | ACB · KACB | 1 |
| Apalachicola Regional Airport | Apalachicola | AAF · KAAF | 3 |
| Apple Valley Airport | Apple Valley | APV · KAPV | 2 |
| Aransas County Airport | Rockport | RKP · KRKP | 2 |
| Arapahoe Municipal Airport | Arapahoe | AHF | 1 |
| Ardmore Downtown Executive Airport | Ardmore | AHD | 1 |
| Ardmore Municipal Airport | Ardmore | ADM · KADM | 2 |
| Arnold Air Force Base | Manchester | TUH | 1 |
| Artesia Municipal Airport | Artesia | ATS · KATS | 2 |
| Arthur N Neu Airport | Carroll | CIN · KCIN | 2 |
| Ashland Municipal Airport Sumner Parker Field | Ashland | AHM | 1 |
| Ashley Municipal Airport | Ashley | ASY · KASY | 1 |
| Atkinson Municipal Airport | Pittsburg | PTS · KPTS | 2 |
| Atlantic Municipal Airport | Atlantic | AIO · KAIO | 2 |
| Auburn Lewiston Municipal Airport | Auburn/Lewiston | LEW · KLEW | 2 |
| Auburn Municipal Airport | Auburn | AUN · KAUN | 1 |
| Auburn University Regional Airport | Auburn | AUO · KAUO | 2 |
| Aurora Municipal Airport | Chicago/Aurora | AUZ · KARR | 3 |
| Austin Airport | Austin | ASQ | 1 |
| Austin Municipal Airport | Austin | AUM · KAUM | 1 |
| Avenger Field | Sweetwater | SWW · KSWW | 2 |
| Avon Park Executive Airport | Avon Park | AVO · KAVO | 2 |
| Bagdad Airport | Bagdad | BGT | 1 |
| Baker Municipal Airport | Baker | KBHK | 1 |
| Baldwin County Regional Airport | Milledgeville | MLJ · KMLJ | 1 |
| Bandon State Airport | Bandon | BDY | 1 |
| Banning Municipal Airport | Banning | BNG · KBNG | 1 |
| Baranof Warm Springs Float and Seaplane Base | Baranof | BNF | 1 |
| Barnwell Regional Airport | Barnwell | BNL · KBNL | 2 |
| Barrow County Airport | Winder | WDR · KWDR | 2 |
| Bartlesville Municipal Airport | Bartlesville | BVO · KBVO | 1 |
| Bartlett Cove Seaplane Base | Gustavus | BQV | 1 |
| Bartow Executive Airport | Bartow | BOW · KBOW | 3 |
| Batesville Airport | Batesville | HLB · KHLB | 1 |
| Batesville Regional Airport | Batesville | BVX · KBVX | 2 |
| Battle Mountain Airport | Battle Mountain | BAM · KBAM | 2 |
| Bay City Regional Airport | Bay City | BBC · KBYY | 1 |
| Baytown Airport | Baytown | HPY · KHPY | 1 |
| Bear Creek 3 Airport | Bear Creek | BCC | 1 |
| Beatrice Municipal Airport | Beatrice | BIE · KBIE | 2 |
| Beatty Airport | Beatty | BTY · KBTY | 1 |
| Beaufort Executive Airport | Beaufort | BFT · KARW | 1 |
| Beaumont Municipal Airport | Beaumont | BMT · KBMT | 1 |
| Beech Factory Airport | Wichita | BEC · KBEC | 1 |
| Belen Regional Airport | Belen | KBRG | 2 |
| Bell Island Hot Springs Seaplane Base | Bell Island | KBE | 1 |
| Beluga Airport | Beluga | BVU · PABG | 2 |
| Benson Municipal Airport | Benson | BBB · KBBB | 1 |
| Benton Field | Redding | BZF | 1 |
| Bentonville Municipal-Louise M Thaden Field | Bentonville | KVBT | 1 |
| Berlin Regional Airport | Berlin | BML · KBML | 1 |
| Bermuda Dunes Airport | Bermuda Dunes | UDD · KUDD | 1 |
| Bethel Seaplane Base | Bethel | JBT | 1 |
| Big Bear City Airport | Big Bear | RBF | 1 |
| Big Lake Airport | Big Lake | BGQ · PAGQ | 1 |
| Big Mountain Airport | Big Mountain | BMX · PABM | 1 |
| Big Pine Sands STOLGround | Big Pine Key, Florida | XFT · KBPD | 0 |
| Big Spring Mc Mahon-Wrinkle Airport | Big Spring | HCA · KBPG | 2 |
| Billy Mitchell Airport | Hatteras | HNC · KHSE | 1 |
| Bisbee Municipal Airport | Bisbee | BSQ | 2 |
| Black Hills Airport-Clyde Ice Field | Spearfish | SPF · KSPF | 3 |