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OSN to BUF: distance & flight time
Osan (Osan Air Base) → Buffalo (Buffalo Niagara International Airport)
6,675 mi
10,742 km · 5,800 nm
13h 33m
estimated nonstop flight time
-13h
time difference · heading north
See live OSN→BUF fares Phone-only fares on this route — call free
Flight time details
6,675 miles nonstop takes roughly 13h 33m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- BUF — Buffalo Niagara International Airport · Buffalo, 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 BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 mi away
Frequently asked questions
How far is OSN from BUF?
The flight distance from Osan (OSN) to Buffalo (BUF) is 6,675 miles (10,742 km, 5,800 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to BUF?
A nonstop flight takes about 13h 33m 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 Buffalo?
Buffalo is 13 hours behind Osan.
What is the cheapest way to fly from OSN to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–BUF that never appear on search engines, with no booking fees.