Horse Fly Airport (Ferndale, WA) WA88 Cartes IFR (règles des instruments de vol)
| 7 | KBLI | Bellingham Intl | Bellingham, WA |
| 21 | KORS | Orcas Island | Eastsound, WA |
| 30 | KBVS | Skagit Rgnl | Burlington/Mount Vernon, WA |
| 33 | KFHR | Friday Harbor | Friday Harbor, WA |
| 45 | KOKH | Delaurentis | Oak Harbor, WA |
