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SNY to BFI: distance & flight time
Sidney (Sidney Municipal-Lloyd W Carr Field) → Seattle (Boeing Field King County International Airport)
1,049 mi
1,689 km · 912 nm
2h 45m
estimated nonstop flight time
-1h
time difference · heading northwest
See live SNY→BFI fares Phone-only fares on this route — call free
Flight time details
1,049 miles nonstop takes roughly 2h 45m gate to gate, flying northwest. 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
- SNY — Sidney Municipal-Lloyd W Carr Field · Sidney, United States
- 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 SNY
- STK · Sterling Municipal Airport37 mi away
- BFF · Western Neb. Rgnl/William B. Heilig Airport62 mi away
- AKO · Colorado Plains Regional Airport65 mi away
- AIA · Alliance Municipal Airport66 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 SNY from BFI?
The flight distance from Sidney (SNY) to Seattle (BFI) is 1,049 miles (1,689 km, 912 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SNY to BFI?
A nonstop flight takes about 2h 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 Sidney and Seattle?
Seattle is 1 hour behind Sidney.
What is the cheapest way to fly from SNY to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SNY–BFI that never appear on search engines, with no booking fees.