| ICAO | IATA | Name | Municipality | Country |
|---|---|---|---|---|
| KSEA | SEA | Seattle–Tacoma International Airport | Seattle | United States |
| KALW | ALW | Walla Walla Regional Airport | Walla Walla | United States |
| KBFI | BFI | Boeing Field King County International Airport | Seattle | United States |
| KBLI | BLI | Bellingham International Airport | Bellingham | United States |
| KCLM | CLM | William R Fairchild International Airport | Port Angeles | United States |
| KEAT | EAT | Pangborn Memorial Airport | Wenatchee | United States |
| KGEG | GEG | Spokane International Airport | Spokane | United States |
| KGRF | GRF | Gray Army Air Field | Fort Lewis/Tacoma | United States |
| KHQM | HQM | Bowerman Airport | Hoquiam | United States |
| KKLS | KLS | Southwest Washington Regional Airport | Kelso | United States |
| KMWH | MWH | Grant County International Airport | Moses Lake | United States |
| KNUW | NUW | Whidbey Island Naval Air Station (Ault Field) | Oak Harbor | United States |
| KOLM | OLM | Olympia Regional Airport | Olympia | United States |
| KPAE | PAE | Snohomish County (Paine Field) Airport | Everett | United States |
| KPSC | PSC | Tri Cities Airport, Pasco | Pasco | United States |
| KPUW | PUW | Pullman Moscow Regional Airport | Pullman/Moscow | United States |
| KPWT | PWT | Bremerton National Airport | Bremerton | United States |
| KSFF | SFF | Felts Field | Spokane | United States |
| KSKA | SKA | Fairchild Air Force Base | Spokane | United States |
| KTCM | TCM | McChord Air Force Base | Tacoma | United States |
| KTIW | TIW | Tacoma Narrows Airport | Tacoma | United States |
| KYKM | YKM | Yakima Air Terminal McAllister Field | Yakima | United States |
| Lower Granite State Airport | Colfax | United States | ||
| Howell Airport, Longbranch | Longbranch | United States | ||
| Hawks Run Airport | Asotin | United States | ||
| Cawleys South Prairie Airport | South Prairie | United States | ||
| Fowler Field | Tonasket | United States | ||
| Spangle Field | Spangle | United States | ||
| Aerostone Ranch Airport | Goldendale | United States | ||
| Ox Meadows Airport | Spokane | United States |