Hiline Airport (Darrington, WA) 72WA Cartes IFR (règles des instruments de vol)
| 27 | KAWO | Arlington Muni | Arlington, WA |
| 34 | S43 | Harvey Fld | Snohomish, WA |
| 40 | KPAE | Snohomish County | Everett, WA |
| 41 | KBVS | Skagit Rgnl | Burlington/Mount Vernon, WA |
| 50 | KOKH | Delaurentis | Oak Harbor, WA |
