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MBS to BFI: distance & flight time
Saginaw (MBS International Airport) → Seattle (Boeing Field King County International Airport)
1,851 mi
2,979 km · 1,609 nm
4h 6m
estimated nonstop flight time
-3h
time difference · heading west
See live MBS→BFI fares Phone-only fares on this route — call free
Flight time details
1,851 miles nonstop takes roughly 4h 6m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- MBS — MBS International Airport · Saginaw, 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 MBS
- AMN · Gratiot Community Airport34 mi away
- GDW · Gladwin Zettel Memorial Airport36 mi away
- FNT · Bishop International Airport43 mi away
- LAN · Capital City Airport58 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 MBS from BFI?
The flight distance from Saginaw (MBS) to Seattle (BFI) is 1,851 miles (2,979 km, 1,609 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MBS to BFI?
A nonstop flight takes about 4h 6m 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 Saginaw and Seattle?
Seattle is 3 hours behind Saginaw.
What is the cheapest way to fly from MBS to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MBS–BFI that never appear on search engines, with no booking fees.