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ISW to BFI: distance & flight time
Wisconsin Rapids (Alexander Field South Wood County Airport) → Seattle (Boeing Field King County International Airport)
1,563 mi
2,516 km · 1,358 nm
3h 32m
estimated nonstop flight time
-2h
time difference · heading west
See live ISW→BFI fares Phone-only fares on this route — call free
Flight time details
1,563 miles nonstop takes roughly 3h 32m 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
- ISW — Alexander Field South Wood County Airport · Wisconsin Rapids, 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 ISW
- STE · Stevens Point Municipal Airport20 mi away
- MFI · Marshfield Municipal Airport26 mi away
- CWA · Central Wisconsin Airport30 mi away
- VOK · Volk Field36 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 ISW from BFI?
The flight distance from Wisconsin Rapids (ISW) to Seattle (BFI) is 1,563 miles (2,516 km, 1,358 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISW to BFI?
A nonstop flight takes about 3h 32m 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 Wisconsin Rapids and Seattle?
Seattle is 2 hours behind Wisconsin Rapids.
What is the cheapest way to fly from ISW to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISW–BFI that never appear on search engines, with no booking fees.