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OSL to BFI: distance & flight time
Oslo (Oslo Lufthavn) → Seattle (Boeing Field King County International Airport)
4,552 mi
7,325 km · 3,955 nm
9h 24m
estimated nonstop flight time
-9h
time difference · heading northwest
See live OSL→BFI fares Phone-only fares on this route — call free
Flight time details
4,552 miles nonstop takes roughly 9h 24m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- OSL — Oslo Lufthavn · Oslo, Norway
- 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 OSL
- FBU · Oslo, Fornebu Airport22 mi away
- HMR · Stafsberg Airport48 mi away
- RYG · Moss Airport, Rygge52 mi away
- TYF · Torsby Airport67 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 OSL from BFI?
The flight distance from Oslo (OSL) to Seattle (BFI) is 4,552 miles (7,325 km, 3,955 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSL to BFI?
A nonstop flight takes about 9h 24m 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 Oslo and Seattle?
Seattle is 9 hours behind Oslo.
What is the cheapest way to fly from OSL to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSL–BFI that never appear on search engines, with no booking fees.