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YSD to BFI: distance & flight time
Suffield (Suffield Heliport) → Seattle (Boeing Field King County International Airport)
539 mi
867 km · 468 nm
1h 38m
estimated nonstop flight time
-1h
time difference · heading west
See live YSD→BFI fares Phone-only fares on this route — call free
Flight time details
539 miles nonstop takes roughly 1h 38m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- YSD — Suffield Heliport · Suffield, 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 YSD
- YXH · Medicine Hat Airport27 mi away
- YQL · Lethbridge County Airport84 mi away
- YKY · Kindersley Airport123 mi away
- YCT · Coronation Airport125 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 YSD from BFI?
The flight distance from Suffield (YSD) to Seattle (BFI) is 539 miles (867 km, 468 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSD to BFI?
A nonstop flight takes about 1h 38m 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 Suffield and Seattle?
Seattle is 1 hour behind Suffield.
What is the cheapest way to fly from YSD to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSD–BFI that never appear on search engines, with no booking fees.