Port Smith Airport (Helena, MT) 4MT5 Cartes IFR (règles des instruments de vol)
| 10 | KHLN | Helena Rgnl | Helena, MT |
| 50 | 38S | Deer Lodge-City-County | Deer Lodge, MT |
| 58 | KGTF | Great Falls Intl | Great Falls, MT |
| 61 | KBTM | Bert Mooney | Butte, MT |
| 63 | 3U3 | Bowman Fld | Anaconda, MT |
