Need help booking?
Unpublished phone-only deals available
ASE to SEA: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Seattle (Seattle Tacoma International Airport)
959 mi
1,543 km · 833 nm
2h 33m
estimated nonstop flight time
-1h
time difference · heading northwest
See live ASE→SEA fares Phone-only fares on this route — call free
Flight time details
959 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
- SEA — Seattle Tacoma 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is ASE from SEA?
The flight distance from Aspen (ASE) to Seattle (SEA) is 959 miles (1,543 km, 833 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE to SEA?
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.
Are there nonstop flights from ASE to SEA?
Nonstop service on ASE–SEA depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 2h 33m nonstop estimate.
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 SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–SEA that never appear on search engines, with no booking fees.
Why are some ASE to SEA fares phone-only?
Consolidator contracts let us sell certain ASE–SEA tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.