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SPI to BFI: distance & flight time
Springfield (Abraham Lincoln Capital Airport) → Seattle (Boeing Field King County International Airport)
1,700 mi
2,736 km · 1,477 nm
3h 48m
estimated nonstop flight time
-2h
time difference · heading northwest
See live SPI→BFI fares Phone-only fares on this route — call free
Flight time details
1,700 miles nonstop takes roughly 3h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- SPI — Abraham Lincoln Capital Airport · Springfield, 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 SPI
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 SPI from BFI?
The flight distance from Springfield (SPI) to Seattle (BFI) is 1,700 miles (2,736 km, 1,477 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SPI to BFI?
A nonstop flight takes about 3h 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 Springfield and Seattle?
Seattle is 2 hours behind Springfield.
What is the cheapest way to fly from SPI to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SPI–BFI that never appear on search engines, with no booking fees.