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BFI to WBU: distance & flight time
Seattle (Boeing Field King County International Airport) → Boulder (Boulder Municipal Airport)
993 mi
1,599 km · 863 nm
2h 38m
estimated nonstop flight time
+1h
time difference · heading southeast
See live BFI→WBU fares Phone-only fares on this route — call free
Flight time details
993 miles nonstop takes roughly 2h 38m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- WBU — Boulder Municipal Airport · Boulder, 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 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
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is BFI from WBU?
The flight distance from Seattle (BFI) to Boulder (WBU) is 993 miles (1,599 km, 863 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to WBU?
A nonstop flight takes about 2h 38m 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 Seattle and Boulder?
Boulder is 1 hour ahead of Seattle.
What is the cheapest way to fly from BFI to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–WBU that never appear on search engines, with no booking fees.