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OSN to AIA: distance & flight time
Osan (Osan Air Base) → Alliance (Alliance Municipal Airport)
6,132 mi
9,868 km · 5,328 nm
12h 29m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OSN→AIA fares Phone-only fares on this route — call free
Flight time details
6,132 miles nonstop takes roughly 12h 29m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- AIA — Alliance Municipal Airport · Alliance, 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 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 AIA
- BFF · Western Neb. Rgnl/William B. Heilig Airport43 mi away
- CDR · Chadron Municipal Airport56 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field66 mi away
- STK · Sterling Municipal Airport102 mi away
Frequently asked questions
How far is OSN from AIA?
The flight distance from Osan (OSN) to Alliance (AIA) is 6,132 miles (9,868 km, 5,328 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to AIA?
A nonstop flight takes about 12h 29m 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 Osan and Alliance?
Alliance is 15 hours behind Osan.
What is the cheapest way to fly from OSN to AIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–AIA that never appear on search engines, with no booking fees.