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QSA to BFI: distance & flight time
Sabadell (Sabadell Airport) → Seattle (Boeing Field King County International Airport)
5,408 mi
8,703 km · 4,699 nm
11h 4m
estimated nonstop flight time
-9h
time difference · heading northwest
See live QSA→BFI fares Phone-only fares on this route — call free
Flight time details
5,408 miles nonstop takes roughly 11h 4m 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
- QSA — Sabadell Airport · Sabadell, Spain
- 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 QSA
- BCN · Barcelona International Airport16 mi away
- GRO · Girona Airport43 mi away
- REU · Reus Air Base55 mi away
- LEU · Pirineus - la Seu d'Urgel 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 QSA from BFI?
The flight distance from Sabadell (QSA) to Seattle (BFI) is 5,408 miles (8,703 km, 4,699 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from QSA to BFI?
A nonstop flight takes about 11h 4m 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 Sabadell and Seattle?
Seattle is 9 hours behind Sabadell.
What is the cheapest way to fly from QSA to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on QSA–BFI that never appear on search engines, with no booking fees.