# Big Flat Airport (ID89)

**Big Flat Airport** (FAA: ID89) is a small airport in Carmen, Idaho, United States. It opened in May 2025. It has one runway, 1,973 ft (601 m) long, grass.

Web page: https://dromopedia.com/airports/us-12721

## At a glance

- FAA: ID89
- Type: Small airport
- Serves: Carmen, Idaho, United States
- Opened: May 2025
- Elevation: 3,805 ft / 1,160 m
- Coordinates: 45.2785, -113.9013
- Runways: 1
- Longest runway: 1,973 ft / 601 m
- Time zone: UTC-7/-6 · America/Boise
- Weather station: KSMN
- Ident: US-12721

## Timeline

- May 2025: Big Flat Airport opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 01/19 | 1,973 ft / 601 m | 40 ft / 12 m | Grass |  |  |

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Longest runway | 1,973 ft / 601 m | #25,038 of 29,858 | #12,424 in North America | #10,957 in US |
| Elevation | 3,805 ft / 1,160 m | =3,843 of 43,403 | =2,051 in North America | =1,620 in US |
| Age | Opened 2025 | =14,775 of 15,079 | =11,902 in North America | =11,758 in US |
| Runways | 1 | =4,364 of 29,978 | =2,583 in North America | =2,326 in US |

## Nearby airports

- [ID50](https://dromopedia.com/airports/us-7561.md) Flying Coyote Ranch Airport · 3.4 mi / 5.5 km
- [8ID8](https://dromopedia.com/airports/8id8.md) Lewis and Clark Airstrip · 5.5 mi / 8.9 km
- [ID52](https://dromopedia.com/airports/us-1217.md) 40 Acre Airstrip · 9.7 mi / 16 km
- [SMN](https://dromopedia.com/airports/ksmn.md) Lemhi County Airport · 11 mi / 17 km
- [18MT](https://dromopedia.com/airports/18mt.md) Fish Ranch Airport · 20 mi / 32 km
- [US-6859](https://dromopedia.com/airports/us-6859.md) Twin Peaks Ranch Airport · 23 mi / 38 km

## Sources

- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/us-12721/data