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HSG to BFI: distance & flight time
Saga (Saga Airport) → Seattle (Boeing Field King County International Airport)
5,282 mi
8,501 km · 4,590 nm
10h 49m
estimated nonstop flight time
-16h
time difference · heading northeast
See live HSG→BFI fares Phone-only fares on this route — call free
Flight time details
5,282 miles nonstop takes roughly 10h 49m 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
- HSG — Saga Airport · Saga, 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 HSG
- NGS · Nagasaki Airport28 mi away
- FUK · Fukuoka Airport31 mi away
- KMJ · Kumamoto Airport39 mi away
- AXJ · Amakusa Airport47 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 HSG from BFI?
The flight distance from Saga (HSG) to Seattle (BFI) is 5,282 miles (8,501 km, 4,590 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HSG to BFI?
A nonstop flight takes about 10h 49m 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 Saga and Seattle?
Seattle is 16 hours behind Saga.
What is the cheapest way to fly from HSG to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HSG–BFI that never appear on search engines, with no booking fees.