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PTH to KSM: distance & flight time
Port Heiden (Port Heiden Airport) → St Mary's (St Mary's Airport)
388 mi
625 km · 338 nm
1h 29m
estimated nonstop flight time
Same time
time difference · heading northwest
See live PTH→KSM fares Phone-only fares on this route — call free
Flight time details
388 miles nonstop takes roughly 1h 29m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- PTH — Port Heiden Airport · Port Heiden, United States
- KSM — St Mary's Airport · St Mary's, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near PTH
- PIP · Pilot Point Airport58 mi away
- KPV · Perryville Airport76 mi away
- EGX · Egegik Airport97 mi away
- PML · Port Moller Airport99 mi away
Near KSM
- MOU · Mountain Village Airport13 mi away
- MLL · Marshall Don Hunter Sr Airport44 mi away
- AUK · Alakanuk Airport61 mi away
- EMK · Emmonak Airport63 mi away
Frequently asked questions
How far is PTH from KSM?
The flight distance from Port Heiden (PTH) to St Mary's (KSM) is 388 miles (625 km, 338 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PTH to KSM?
A nonstop flight takes about 1h 29m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from PTH to KSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PTH–KSM that never appear on search engines, with no booking fees.