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OIT to OSN: distance & flight time
Oita (Oita Airport) → Osan (Osan Air Base)
364 mi
586 km · 317 nm
1h 26m
estimated nonstop flight time
Same time
time difference · heading northwest
See live OIT→OSN fares Phone-only fares on this route — call free
Flight time details
364 miles nonstop takes roughly 1h 26m 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
- OIT — Oita Airport · Oita, Japan
- 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 OIT
- UBJ · Yamaguchi Ube Airport41 mi away
- KKJ · Kitakyūshū Airport48 mi away
- IWK · Iwakuni Marine Corps Air Station54 mi away
- MYJ · Matsuyama Airport60 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 OIT from OSN?
The flight distance from Oita (OIT) to Osan (OSN) is 364 miles (586 km, 317 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIT to OSN?
A nonstop flight takes about 1h 26m 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 OIT to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIT–OSN that never appear on search engines, with no booking fees.