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KCZ to BFI: distance & flight time
Kochi (Kōchi Ryōma Airport) → Seattle (Boeing Field King County International Airport)
5,131 mi
8,258 km · 4,459 nm
10h 32m
estimated nonstop flight time
-16h
time difference · heading northeast
See live KCZ→BFI fares Phone-only fares on this route — call free
Flight time details
5,131 miles nonstop takes roughly 10h 32m 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
- KCZ — Kōchi Ryōma Airport · Kochi, Japan
- 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 KCZ
- TAK · Takamatsu Airport50 mi away
- MYJ · Matsuyama Airport59 mi away
- TKS · Tokushima Airport/JMSDF Air Base67 mi away
- HIJ · Hiroshima Airport75 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 KCZ from BFI?
The flight distance from Kochi (KCZ) to Seattle (BFI) is 5,131 miles (8,258 km, 4,459 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KCZ to BFI?
A nonstop flight takes about 10h 32m 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 Kochi and Seattle?
Seattle is 16 hours behind Kochi.
What is the cheapest way to fly from KCZ to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KCZ–BFI that never appear on search engines, with no booking fees.