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GMP to BUF: distance & flight time
Seoul (Gimpo International Airport) → Buffalo (Buffalo Niagara International Airport)
6,649 mi
10,700 km · 5,777 nm
13h 30m
estimated nonstop flight time
-13h
time difference · heading north
See live GMP→BUF fares Phone-only fares on this route — call free
Flight time details
6,649 miles nonstop takes roughly 13h 30m 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
- GMP — Gimpo International Airport · Seoul, 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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 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 GMP from BUF?
The flight distance from Seoul (GMP) to Buffalo (BUF) is 6,649 miles (10,700 km, 5,777 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GMP to BUF?
A nonstop flight takes about 13h 30m 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 Seoul and Buffalo?
Buffalo is 13 hours behind Seoul.
What is the cheapest way to fly from GMP to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GMP–BUF that never appear on search engines, with no booking fees.