St Mary's Airport
KSM has 2 runways. The longest is 17/35 at 6,008 ft × 150 ft (gravel).
FAA NASR data, cycle 2026-09-03
KSM field elevation is 312 ft MSL. The standard traffic pattern altitude at KSM is 1,310 ft MSL (1,000 ft AGL).
FAA NASR data, cycle 2026-09-03
CTAF 122.3 MHz — KSM is non-towered; self-announce position and intentions on CTAF.
Check PASM against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, KSM is a non-towered airport. The CTAF frequency is 122.3 MHz.
The AWOS frequency at KSM (St Mary's Airport) is 128.7 MHz.
KSM has 2 runways (17/35, 6/24). The longest runway is 6,008 feet.
Runway 17/35 is the longest at KSM — 6,008 ft × 150 ft, gravel.
KSM uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,310 feet MSL at a field elevation of 312 feet.
KSM (St Mary's Airport) has a field elevation of 312 feet MSL.
KSM (St Mary's Airport) is located in St Mary's, AK.