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QLS to BFI: distance & flight time
Lausanne (Lausanne-Blécherette Airport) → Seattle (Boeing Field King County International Airport)
5,244 mi
8,439 km · 4,557 nm
10h 45m
estimated nonstop flight time
-9h
time difference · heading northwest
See live QLS→BFI fares Phone-only fares on this route — call free
Flight time details
5,244 miles nonstop takes roughly 10h 45m 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
- QLS — Lausanne-Blécherette Airport · Lausanne, Switzerland
- 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 QLS
- QNJ · Annemasse Airport30 mi away
- QNC · Neuchatel Airport31 mi away
- GVA · Geneva Cointrin International Airport32 mi away
- SIR · Sion Airport41 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 QLS from BFI?
The flight distance from Lausanne (QLS) to Seattle (BFI) is 5,244 miles (8,439 km, 4,557 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from QLS to BFI?
A nonstop flight takes about 10h 45m 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 Lausanne and Seattle?
Seattle is 9 hours behind Lausanne.
What is the cheapest way to fly from QLS to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on QLS–BFI that never appear on search engines, with no booking fees.