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KKJ to SEA: distance & flight time
Kitakyushu (Kitakyūshū Airport) → Seattle (Seattle Tacoma International Airport)
5,221 mi
8,402 km · 4,537 nm
10h 42m
estimated nonstop flight time
-16h
time difference · heading northeast
See live KKJ→SEA fares Phone-only fares on this route — call free
Flight time details
5,221 miles nonstop takes roughly 10h 42m 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
- KKJ — Kitakyūshū Airport · Kitakyushu, Japan
- SEA — Seattle Tacoma 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 KKJ
- UBJ · Yamaguchi Ube Airport15 mi away
- FUK · Fukuoka Airport38 mi away
- OIT · Oita Airport48 mi away
- HSG · Saga Airport64 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is KKJ from SEA?
The flight distance from Kitakyushu (KKJ) to Seattle (SEA) is 5,221 miles (8,402 km, 4,537 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KKJ to SEA?
A nonstop flight takes about 10h 42m 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 Kitakyushu and Seattle?
Seattle is 16 hours behind Kitakyushu.
What is the cheapest way to fly from KKJ to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KKJ–SEA that never appear on search engines, with no booking fees.