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YSH to BFI: distance & flight time
Smiths Falls (Smiths Falls-Montague (Russ Beach) Airport) → Seattle (Boeing Field King County International Airport)
2,190 mi
3,524 km · 1,903 nm
4h 46m
estimated nonstop flight time
—
time difference · heading west
See live YSH→BFI fares Phone-only fares on this route — call free
Flight time details
2,190 miles nonstop takes roughly 4h 46m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- YSH — Smiths Falls-Montague (Russ Beach) Airport · Smiths Falls, 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 YSH
- YOW · Ottawa Macdonald-Cartier International Airport29 mi away
- OGS · Ogdensburg International Airport30 mi away
- YRO · Ottawa / Rockcliffe Airport38 mi away
- YND · Ottawa / Gatineau Airport44 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 YSH from BFI?
The flight distance from Smiths Falls (YSH) to Seattle (BFI) is 2,190 miles (3,524 km, 1,903 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSH to BFI?
A nonstop flight takes about 4h 46m 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 cheapest way to fly from YSH to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSH–BFI that never appear on search engines, with no booking fees.