# Boulder Airport (K3U9)

> Boulder Airport airport in Boulder, Montana, US.

## Identification

- **IATA**: N/A
- **ICAO**: K3U9
- **LID**: 3U9
- **Name**: Boulder Airport

## Location

- **City**: [Boulder](https://www.flightduration.online/airports/city/boulder-us)
- **State / Region**: Montana
- **Country**: [United States (US)](https://www.flightduration.online/airports/us)
- **Timezone**: [America/Denver](https://www.flightduration.online/airports/timezone/america-denver)
- **Coordinates**: 46.210000, -112.110000
- **Elevation**: 4,968 ft (1,514 m)

## About Boulder Airport

Boulder Airport is an airport located in Boulder Montana, United States. The ICAO code **K3U9** is used by air traffic control and pilots for flight planning.

The airport operates in the **America/Denver** timezone. Use the [flight duration calculator](/) to account for timezone differences when planning flights to or from K3U9.

Boulder Airport sits at an elevation of **4,968 feet** (1,514 meters) above sea level.

## Airports within 100 km

- [Klies Air Strip (MT43)](https://www.flightduration.online/airport/mt43-basin-klies-air-strip/1ef266df-68fd-62c2-99e5-06bb2780ed98) — Basin · 23.6 km away
- [Jefco Skypark Airport (MT41)](https://www.flightduration.online/airport/mt41-whitehall-jefco-skypark-airport/1ef266df-68f2-6e94-87fb-06bb2780ed98) — Whitehall · 36.7 km away
- [Duncan Airport (MT06)](https://www.flightduration.online/airport/mt06-helena-duncan-airport/1ef266df-6882-6090-add2-06bb2780ed98) — Helena · 40.4 km away
- [Ten Mile Airport (MT83)](https://www.flightduration.online/airport/mt83-helena-ten-mile-airport/1ef266df-698f-6500-a753-06bb2780ed98) — Helena · 40.4 km away
- [Nistler Helena Airport (30MT)](https://www.flightduration.online/airport/30mt-helena-nistler-helena-airport/1ef266de-7097-697a-ac7e-06bb2780ed98) — Helena · 41.3 km away
- [M4 Strip (MT46)](https://www.flightduration.online/airport/mt46-east-helena-m4-strip/1ef266df-6908-61a4-8577-06bb2780ed98) — East Helena · 41.4 km away
- [Bert Mooney Airport (BTM)](https://www.flightduration.online/airport/btm-butte-bert-mooney-airport/1ef266df-1175-60a4-aa32-06bb2780ed98) — Butte · 41.7 km away
- [Wood Strip (1MT3)](https://www.flightduration.online/airport/1mt3-elliston-wood-strip/1ef266de-66ad-6752-a6d9-06bb2780ed98) — Elliston · 45.2 km away
- [South Boulder Airport (2MT8)](https://www.flightduration.online/airport/2mt8-cardwell-south-boulder-airport/1ef266de-6e5e-6ab4-b7df-06bb2780ed98) — Cardwell · 45.5 km away
- [Helena Regional Airport (HLN)](https://www.flightduration.online/airport/hln-helena-helena-regional-airport/1ef266df-20d7-6808-b3f9-06bb2780ed98) — Helena · 45.6 km away
- [Fort Harrison Army Air Field (MT15)](https://www.flightduration.online/airport/mt15-helena-fort-harrison-army-air-field/1ef266df-6894-6470-b350-06bb2780ed98) — Helena · 45.6 km away
- [Canyon Ferry Airport (K8U9)](https://www.flightduration.online/airport/k8u9-townsend-canyon-ferry-airport/1ef266df-0b36-6bca-80f4-06bb2780ed98) — Townsend · 46.9 km away

## Related

- [All airports in United States](https://www.flightduration.online/airports/us)
- [Calculate flight duration](/#calculator)
- [Browse airports by country](https://www.flightduration.online/airports)