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IST to BFI: distance & flight time
Istanbul (Istanbul Airport) → Seattle (Boeing Field King County International Airport)
6,050 mi
9,736 km · 5,257 nm
12h 20m
estimated nonstop flight time
-10h
time difference · heading north
See live IST→BFI fares Phone-only fares on this route — call free
Flight time details
6,050 miles nonstop takes roughly 12h 20m gate to gate, flying north. 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
- IST — Istanbul Airport · Istanbul, Turkey
- 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 IST
- ISL · Atatürk International Airport21 mi away
- SAW · Sabiha Gökçen International Airport39 mi away
- TEQ · Tekirdağ Çorlu Airport44 mi away
- BTZ · Bursa Airport73 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 IST from BFI?
The flight distance from Istanbul (IST) to Seattle (BFI) is 6,050 miles (9,736 km, 5,257 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IST to BFI?
A nonstop flight takes about 12h 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 Istanbul and Seattle?
Seattle is 10 hours behind Istanbul.
What is the cheapest way to fly from IST to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IST–BFI that never appear on search engines, with no booking fees.