Need help booking?
Unpublished phone-only deals available
FET to OSN: distance & flight time
Fremont (Fremont Municipal Airport) → Osan (Osan Air Base)
6,354 mi
10,225 km · 5,521 nm
12h 55m
estimated nonstop flight time
—
time difference · heading northwest
See live FET→OSN fares Phone-only fares on this route — call free
Flight time details
6,354 miles nonstop takes roughly 12h 55m 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
- FET — Fremont Municipal Airport · Fremont, 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 FET
- OMA · Eppley Airfield34 mi away
- OFF · Offutt Air Force Base39 mi away
- CBF · Council Bluffs Municipal Airport42 mi away
- LNK · Lincoln Airport43 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 FET from OSN?
The flight distance from Fremont (FET) to Osan (OSN) is 6,354 miles (10,225 km, 5,521 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FET to OSN?
A nonstop flight takes about 12h 55m 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 FET to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FET–OSN that never appear on search engines, with no booking fees.