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ALS to SEA: distance & flight time
Alamosa (San Luis Valley Regional Bergman Field) → Seattle (Seattle Tacoma International Airport)
1,083 mi
1,743 km · 941 nm
2h 49m
estimated nonstop flight time
-1h
time difference · heading northwest
See live ALS→SEA fares Phone-only fares on this route — call free
Flight time details
1,083 miles nonstop takes roughly 2h 49m 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
- ALS — San Luis Valley Regional Bergman Field · Alamosa, 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 ALS
- TSM · Taos Regional Airport68 mi away
- RTN · Raton Municipal-Crews Field89 mi away
- PUB · Pueblo Memorial Airport95 mi away
- GUC · Gunnison Crested Butte Regional Airport96 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 ALS from SEA?
The flight distance from Alamosa (ALS) to Seattle (SEA) is 1,083 miles (1,743 km, 941 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALS to SEA?
A nonstop flight takes about 2h 49m 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 Alamosa and Seattle?
Seattle is 1 hour behind Alamosa.
What is the cheapest way to fly from ALS to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALS–SEA that never appear on search engines, with no booking fees.