Need help booking?
Unpublished phone-only deals available
POW to BFI: distance & flight time
Portoroz (Portoroz Airport) → Seattle (Boeing Field King County International Airport)
5,479 mi
8,817 km · 4,761 nm
11h 13m
estimated nonstop flight time
-9h
time difference · heading northwest
See live POW→BFI fares Phone-only fares on this route — call free
Flight time details
5,479 miles nonstop takes roughly 11h 13m 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
- POW — Portoroz Airport · Portoroz, Slovenia
- 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 POW
- TRS · Trieste–Friuli Venezia Giulia Airport25 mi away
- PUY · Pula Airport43 mi away
- RJK · Rijeka Airport50 mi away
- VCE · Venice Marco Polo Airport61 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 POW from BFI?
The flight distance from Portoroz (POW) to Seattle (BFI) is 5,479 miles (8,817 km, 4,761 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from POW to BFI?
A nonstop flight takes about 11h 13m 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 Portoroz and Seattle?
Seattle is 9 hours behind Portoroz.
What is the cheapest way to fly from POW to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on POW–BFI that never appear on search engines, with no booking fees.