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YSC to BFI: distance & flight time
Sherbrooke (Sherbrooke Airport) → Seattle (Boeing Field King County International Airport)
2,369 mi
3,813 km · 2,059 nm
5h 7m
estimated nonstop flight time
-3h
time difference · heading west
See live YSC→BFI fares Phone-only fares on this route — call free
Flight time details
2,369 miles nonstop takes roughly 5h 7m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- YSC — Sherbrooke Airport · Sherbrooke, Canada
- 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 YSC
- ZBM · Bromont (Roland Desourdy) Airport52 mi away
- MVL · Morrisville Stowe State Airport77 mi away
- YJN · St Jean Airport78 mi away
- YRQ · Trois-Rivières Airport79 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 YSC from BFI?
The flight distance from Sherbrooke (YSC) to Seattle (BFI) is 2,369 miles (3,813 km, 2,059 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSC to BFI?
A nonstop flight takes about 5h 7m 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 Sherbrooke and Seattle?
Seattle is 3 hours behind Sherbrooke.
What is the cheapest way to fly from YSC to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSC–BFI that never appear on search engines, with no booking fees.