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FAI to KSM: distance & flight time
Fairbanks (Fairbanks International Airport) → St Mary's (St Mary's Airport)
512 mi
824 km · 445 nm
1h 35m
estimated nonstop flight time
Same time
time difference · heading west
See live FAI→KSM fares Phone-only fares on this route — call free
Flight time details
512 miles nonstop takes roughly 1h 35m gate to gate, flying west. 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
- FAI — Fairbanks International Airport · Fairbanks, 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 FAI
- FBK · Ladd AAF Airfield7 mi away
- EIL · Eielson Air Force Base25 mi away
- ENN · Nenana Municipal Airport40 mi away
- MCL · McKinley National Park Airport81 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 FAI from KSM?
The flight distance from Fairbanks (FAI) to St Mary's (KSM) is 512 miles (824 km, 445 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FAI to KSM?
A nonstop flight takes about 1h 35m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from FAI to KSM?
Nonstop service on FAI–KSM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 35m nonstop estimate.
What is the cheapest way to fly from FAI to KSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FAI–KSM that never appear on search engines, with no booking fees.
Why are some FAI to KSM fares phone-only?
Consolidator contracts let us sell certain FAI–KSM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.