Middleton Island Airport
MDO has 2 runways. The longest is 2/20 at 3,158 ft × 115 ft (gravel).
FAA NASR data, cycle 2026-09-03
MDO field elevation is 100 ft MSL. The standard traffic pattern altitude at MDO is 1,100 ft MSL (1,000 ft AGL).
FAA NASR data, cycle 2026-09-03
CTAF 122.9 MHz — MDO is non-towered; self-announce position and intentions on CTAF.
Check PAMD against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, MDO is a non-towered airport. The CTAF frequency is 122.9 MHz.
MDO has 2 runways (2/20, 13/31). The longest runway is 3,158 feet.
Runway 2/20 is the longest at MDO — 3,158 ft × 115 ft, gravel.
MDO uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,100 feet MSL at a field elevation of 100 feet.
MDO (Middleton Island Airport) has a field elevation of 100 feet MSL.
MDO (Middleton Island Airport) is located in Middleton Island, AK.