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YLI to BFI: distance & flight time
Ylivieska-raudaskyla (Ylivieska Airfield) → Seattle (Boeing Field King County International Airport)
4,522 mi
7,278 km · 3,930 nm
9h 20m
estimated nonstop flight time
-10h
time difference · heading northwest
See live YLI→BFI fares Phone-only fares on this route — call free
Flight time details
4,522 miles nonstop takes roughly 9h 20m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time set-back when reading arrival times on your ticket.
The two airports
- YLI — Ylivieska Airfield · Ylivieska-raudaskyla, Finland
- 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 YLI
- KOK · Kokkola-Pietarsaari Airport53 mi away
- OUL · Oulu Airport63 mi away
- KAU · Kauhava Airport82 mi away
- KAJ · Kajaani Airport91 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 YLI from BFI?
The flight distance from Ylivieska-raudaskyla (YLI) to Seattle (BFI) is 4,522 miles (7,278 km, 3,930 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YLI to BFI?
A nonstop flight takes about 9h 20m 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 Ylivieska-raudaskyla and Seattle?
Seattle is 10 hours behind Ylivieska-raudaskyla.
What is the cheapest way to fly from YLI to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YLI–BFI that never appear on search engines, with no booking fees.