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OSN to ICN: distance & flight time
Osan (Osan Air Base) → Seoul (Incheon International Airport)
41 mi
66 km · 36 nm
35m
estimated nonstop flight time
Same time
time difference · heading northwest
See live OSN→ICN fares Phone-only fares on this route — call free
Flight time details
41 miles nonstop takes roughly 35m 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
- OSN — Osan Air Base · Osan, South Korea
- ICN — Incheon International Airport · Seoul, 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 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
Near ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Frequently asked questions
How far is OSN from ICN?
The flight distance from Osan (OSN) to Seoul (ICN) is 41 miles (66 km, 36 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to ICN?
A nonstop flight takes about 35m 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 OSN to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–ICN that never appear on search engines, with no booking fees.