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FSM to OSN: distance & flight time
Fort Smith (Fort Smith Regional Airport) → Osan (Osan Air Base)
6,772 mi
10,898 km · 5,885 nm
13h 45m
estimated nonstop flight time
+14h
time difference · heading northwest
See live FSM→OSN fares Phone-only fares on this route — call free
Flight time details
6,772 miles nonstop takes roughly 13h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- FSM — Fort Smith Regional Airport · Fort Smith, United States
- OSN — Osan Air Base · Osan, South Korea
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 FSM
- FYV · Drake Field47 mi away
- XNA · Northwest Arkansas Regional Airport65 mi away
- MLC · Mc Alester Regional Airport86 mi away
- OKM · Okmulgee Regional Airport92 mi away
Near OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Frequently asked questions
How far is FSM from OSN?
The flight distance from Fort Smith (FSM) to Osan (OSN) is 6,772 miles (10,898 km, 5,885 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSM to OSN?
A nonstop flight takes about 13h 45m 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 Fort Smith and Osan?
Osan is 14 hours ahead of Fort Smith.
What is the cheapest way to fly from FSM to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSM–OSN that never appear on search engines, with no booking fees.