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FLD to BFI: distance & flight time
Fond du Lac (Fond du Lac County Airport) → Seattle (Boeing Field King County International Airport)
1,640 mi
2,640 km · 1,425 nm
3h 41m
estimated nonstop flight time
-2h
time difference · heading west
See live FLD→BFI fares Phone-only fares on this route — call free
Flight time details
1,640 miles nonstop takes roughly 3h 41m 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
- FLD — Fond du Lac County Airport · Fond du Lac, 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 FLD
- OSH · Wittman Regional Airport15 mi away
- ETB · West Bend Municipal Airport30 mi away
- SBM · Sheboygan County Memorial Airport32 mi away
- ATW · Appleton International Airport34 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 FLD from BFI?
The flight distance from Fond du Lac (FLD) to Seattle (BFI) is 1,640 miles (2,640 km, 1,425 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLD to BFI?
A nonstop flight takes about 3h 41m 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 Fond du Lac and Seattle?
Seattle is 2 hours behind Fond du Lac.
What is the cheapest way to fly from FLD to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLD–BFI that never appear on search engines, with no booking fees.