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SWU to BUF: distance & flight time
Suwon (Suwon Airport) → Buffalo (Buffalo Niagara International Airport)
6,666 mi
10,727 km · 5,792 nm
13h 32m
estimated nonstop flight time
-13h
time difference · heading north
See live SWU→BUF fares Phone-only fares on this route — call free
Flight time details
6,666 miles nonstop takes roughly 13h 32m 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
- SWU — Suwon Airport · Suwon, 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 SWU
- ICN · Incheon International Airport34 mi away
- OSN · Osan Air Base10 mi away
- SSN · Seoul Air Base (K-16)15 mi away
- GMP · Gimpo International Airport25 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 SWU from BUF?
The flight distance from Suwon (SWU) to Buffalo (BUF) is 6,666 miles (10,727 km, 5,792 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SWU to BUF?
A nonstop flight takes about 13h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SWU to BUF?
Nonstop service on SWU–BUF depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 32m nonstop estimate.
What is the time difference between Suwon and Buffalo?
Buffalo is 13 hours behind Suwon.
What is the cheapest way to fly from SWU to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SWU–BUF that never appear on search engines, with no booking fees.
Why are some SWU to BUF fares phone-only?
Consolidator contracts let us sell certain SWU–BUF tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.