Big Sandy Airport
3U8 has 3 runways. The longest is 6/24 at 3,570 ft × 60 ft (asphalt).
FAA NASR data, cycle 2026-09-03
3U8 field elevation is 2,700 ft MSL. The published traffic pattern altitude at 3U8 is 3,500 ft MSL (800 ft AGL). Fuel available at 3U8: 100LL.
FAA NASR data, cycle 2026-09-03
CTAF 122.9 MHz — 3U8 is non-towered; self-announce position and intentions on CTAF.
Check K3U8 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, 3U8 is a non-towered airport. The CTAF frequency is 122.9 MHz.
3U8 has 3 runways (6/24, 13/31, 18/36). The longest runway is 3,570 feet.
Runway 6/24 is the longest at 3U8 — 3,570 ft × 60 ft, asphalt.
3U8 publishes a traffic pattern altitude of 800 feet AGL — about 3,500 feet MSL — which is not the standard 1,000 feet.
Yes. 3U8 (Big Sandy Airport) has 100LL available. Call the field for hours, self-serve availability and price.
3U8 (Big Sandy Airport) has a field elevation of 2,700 feet MSL.
3U8 (Big Sandy Airport) is located in Big Sandy, MT.