Michair Airport (Cathlamet, WA) WT44 Cartes IFR (règles des instruments de vol)
| 24 | KAST | Astoria Rgnl | Astoria, OR |
| 24 | KKLS | Southwest Washington Rgnl | Kelso, WA |
| 34 | KTDO | South Lewis Co | Toledo, WA |
| 38 | KSPB | Scappoose | Scappoose, OR |
| 39 | KCLS | Chehalis-Centralia | Chehalis, WA |
