Need help booking?
Unpublished phone-only deals available
ASE to BFI: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Seattle (Boeing Field King County International Airport)
962 mi
1,547 km · 836 nm
2h 33m
estimated nonstop flight time
-1h
time difference · heading northwest
See live ASE→BFI fares Phone-only fares on this route — call free
Flight time details
962 miles nonstop takes roughly 2h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 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 ASE from BFI?
The flight distance from Aspen (ASE) to Seattle (BFI) is 962 miles (1,547 km, 836 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE to BFI?
A nonstop flight takes about 2h 33m 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 Aspen and Seattle?
Seattle is 1 hour behind Aspen.
What is the cheapest way to fly from ASE to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–BFI that never appear on search engines, with no booking fees.