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JFK to KSM: distance & flight time
New York (John F Kennedy International Airport) → St Mary's (St Mary's Airport)
3,777 mi
6,079 km · 3,282 nm
7h 52m
estimated nonstop flight time
-4h
time difference · heading northwest
See live JFK→KSM fares Phone-only fares on this route — call free
Flight time details
3,777 miles nonstop takes roughly 7h 52m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- JFK — John F Kennedy International Airport · New York, 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 JFK
- LGA · La Guardia Airport11 mi away
- EWR · Newark Liberty International Airport21 mi away
- JRB · Downtown-Manhattan/Wall St Heliport13 mi away
- JRA · West 30th St. Heliport14 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 JFK from KSM?
The flight distance from New York (JFK) to St Mary's (KSM) is 3,777 miles (6,079 km, 3,282 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from JFK to KSM?
A nonstop flight takes about 7h 52m 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 time difference between New York and St Mary's?
St Mary's is 4 hours behind New York.
What is the cheapest way to fly from JFK to KSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on JFK–KSM that never appear on search engines, with no booking fees.