| YNG | KYNG | Youngstown-Warren Regional Airport | Youngstown | |
| MYV | KMYV | Yuba County Airport | Marysville | |
| KZB | - | Zachar Bay Sea Plane Base | Zachar Bay | |
| TOA | KTOA | Zamperini Field | Torrance | |
| ZZV | KZZV | Zanesville Municipal Airport | Zanesville | |
| - | - | A R S Sport Strip | Belle Plaine | |
| - | - | Aanenson | Luverne | |
| - | - | Abbeville Crusta Memorial | Abbeville | |
| - | - | Abbeville Municipal | Abbeville | |
| - | - | Aberdeen Municipal | Aberdeen | |
| - | - | Abernathy Municipal | Abernathy | |
| - | - | Abide | Greenville | |
| - | - | Abrams Municipal | Grand Ledge | |
| MFV | KMFV | Accomack County Airport | Melfa | |
| - | - | Ace | Anderson | |
| - | - | Ackerman-Choctaw Co | Ackerman | |
| - | - | Ackley Municipal | Ackley | |
| - | - | Ada | Ada | |
| ADT | KADH | Ada Airport | Ada | |
| - | - | Adams Co Legion | Friendship | |
| - | - | Addison Municipal | Addison | |
| - | - | Adin | Adin | |
| - | - | Aero Country | Mc Kinney | |
| - | - | Aero Park | Menomonee Falls | |
| - | - | Aeroflex-Andover | Andover | |
| INS | KINS | Af Aux Airport | Indian Springs | |
| AFO | KAFO | Afton Municipal Airport | Afton | |
| - | - | Agua Caliente Springs | Agua Caliente Springs | |
| - | - | Agua Dulce | Agua Dulce | |
| ANW | KANW | Ainsworth Airport | Ainsworth | |
| - | - | Air Harbor | Greensboro | |
| - | - | Air Park South | Ozark | |
| - | - | Airglades | Clewiston | |
| - | - | Airhaven | Staatsburg | |
| - | KLVN | Airlake | Minneapolis | |
| - | - | Airlane Enterprises | Clay | |
| - | - | Airpark East | Dallas | |
| - | - | Airpark-Dallas | Dallas | |
| - | - | Airport Manatee | Palmetto | |
| - | - | Airtrek | Waterloo | |
| - | KAIT | Aitkin Mun - Kurtz | Aitkin | |
| - | - | Ajo Municipal | Ajo | |
| - | - | Akron | Akron | |
| - | - | Akron Municipal | Akron | |
| NGZ | - | Alameda Naval Air Station | Alameda | |
| - | - | Alamo Landing | Alamo | |
| - | - | Alamo-Navajo | Alamo | |
| - | - | Albany Municipal | Albany | |
| - | - | Albany Municipal | Albany | |
| NAB | - | Albany Naval Air Station | Albany | |