Need help booking?
Unpublished phone-only deals available
KWJ to BFI: distance & flight time
Kwangju (Gwangju Airport) → Seattle (Boeing Field King County International Airport)
5,310 mi
8,546 km · 4,614 nm
10h 53m
estimated nonstop flight time
-16h
time difference · heading northeast
See live KWJ→BFI fares Phone-only fares on this route — call free
Flight time details
5,310 miles nonstop takes roughly 10h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- KWJ — Gwangju Airport · Kwangju, South Korea
- BFI — Boeing Field King County International Airport · Seattle, 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 KWJ
- MWX · Muan International Airport26 mi away
- MPK · Mokpo Heliport35 mi away
- RSU · Yeosu Airport50 mi away
- CHN · Jeon Ju Airport (G-703)55 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is KWJ from BFI?
The flight distance from Kwangju (KWJ) to Seattle (BFI) is 5,310 miles (8,546 km, 4,614 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KWJ to BFI?
A nonstop flight takes about 10h 53m 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 Kwangju and Seattle?
Seattle is 16 hours behind Kwangju.
What is the cheapest way to fly from KWJ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KWJ–BFI that never appear on search engines, with no booking fees.