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ZIN to BFI: distance & flight time
Interlaken (Interlaken Air Base) → Seattle (Boeing Field King County International Airport)
5,268 mi
8,478 km · 4,578 nm
10h 48m
estimated nonstop flight time
-9h
time difference · heading northwest
See live ZIN→BFI fares Phone-only fares on this route — call free
Flight time details
5,268 miles nonstop takes roughly 10h 48m 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
- ZIN — Interlaken Air Base · Interlaken, 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 ZIN
- BRN · Bern Belp Airport24 mi away
- BXO · Buochs Airport32 mi away
- EML · Emmen Air Base35 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 ZIN from BFI?
The flight distance from Interlaken (ZIN) to Seattle (BFI) is 5,268 miles (8,478 km, 4,578 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZIN to BFI?
A nonstop flight takes about 10h 48m 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 Interlaken and Seattle?
Seattle is 9 hours behind Interlaken.
What is the cheapest way to fly from ZIN to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZIN–BFI that never appear on search engines, with no booking fees.