Need help booking?
Unpublished phone-only deals available
BFI to TKU: distance & flight time
Seattle (Boeing Field King County International Airport) → Turku (Turku Airport)
4,712 mi
7,584 km · 4,095 nm
9h 42m
estimated nonstop flight time
+10h
time difference · heading north
See live BFI→TKU fares Phone-only fares on this route — call free
Flight time details
4,712 miles nonstop takes roughly 9h 42m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- TKU — Turku Airport · Turku, Finland
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 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
Near TKU
- POR · Pori Airport67 mi away
- TMP · Tampere-Pirkkala Airport77 mi away
- MHQ · Mariehamn Airport85 mi away
- HYV · Hyvinkää Airfield89 mi away
Frequently asked questions
How far is BFI from TKU?
The flight distance from Seattle (BFI) to Turku (TKU) is 4,712 miles (7,584 km, 4,095 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to TKU?
A nonstop flight takes about 9h 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 Seattle and Turku?
Turku is 10 hours ahead of Seattle.
What is the cheapest way to fly from BFI to TKU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–TKU that never appear on search engines, with no booking fees.