Duncan Airport, Helena is an Small airport serving the city of Helena in Montana, United States. The Helena time zone is MST - Mountain Standard Time (UTC-7). The United States dollar(USD) is the official currency of the United States.
| Municipality | Helena |
| Region | Montana |
| Country | United States |
| Elevation | 4260ft / 1298m |
| Type | Small airport |
| Native name | Bandar Udara Internasional Soekarno–Hatta |
| Timezone | MST - Mountain Standard Time (UTC-7) |
| Coordinates | 46°34'14"N/-112°10'31"W |
| Currency | United States dollar(USD) |
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| Runway | Length | Width | Surface | Lighted |
|---|---|---|---|---|
| 1 | 1467ft / 447m | 50ft / 15m | TURF | No |
| Airport | Distance |
|---|---|
| Ten Mile Airport | 0.38 KM |
| Nistler Helena Airport | 4.79 KM |
| Fort Harrison Army Airfield | 7.78 KM |
| Helena Regional Airport | 15.24 KM |
| Silver Creek Airport, Helena | 17.17 KM |
| Wood Strip, Elliston | 18.34 KM |
| M4 Strip | 21.98 KM |
| Davis Airport, Helena | 26.69 KM |
| Klies Air Strip | 28.08 KM |
| Mountain Lakes Field | 28.93 KM |
| Boulder Airport | 40.26 KM |
| Canyon Ferry Airport | 48.8 KM |
| Deer Lodge City County Airport | 49.57 KM |
| Elk Meadows Ranch Airport | 51.86 KM |
| Larner Field | 54.66 KM |
| Lincoln Airport, Montana | 55.95 KM |
| Townsend Airport | 59.33 KM |
| Lander's Fork Ranch Airport | 60.69 KM |
| Cain Ranch Airport | 60.83 KM |
| Gold Creek Airport, Drummond | 62.51 KM |