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STP to BFI: distance & flight time
St. Paul (St Paul Downtown Holman Field) → Seattle (Boeing Field King County International Airport)
1,401 mi
2,254 km · 1,217 nm
3h 31m
estimated nonstop flight time
-2h
time difference · heading west
See live STP→BFI fares Phone-only fares on this route — call free
Flight time details
1,401 miles nonstop takes roughly 3h 31m gate to gate, flying west. 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
- STP — St Paul Downtown Holman Field · St. Paul, 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 STP
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 STP from BFI?
The flight distance from St. Paul (STP) to Seattle (BFI) is 1,401 miles (2,254 km, 1,217 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STP to BFI?
A nonstop flight takes about 3h 31m 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 St. Paul and Seattle?
Seattle is 2 hours behind St. Paul.
What is the cheapest way to fly from STP to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STP–BFI that never appear on search engines, with no booking fees.