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ALS to FSD: distance & flight time
Alamosa (San Luis Valley Regional Bergman Field) → Sioux Falls (Joe Foss Field Airport)
640 mi
1,030 km · 556 nm
1h 51m
estimated nonstop flight time
+1h
time difference · heading northeast
See live ALS→FSD fares Phone-only fares on this route — call free
Flight time details
640 miles nonstop takes roughly 1h 51m gate to gate, flying northeast. 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
- ALS — San Luis Valley Regional Bergman Field · Alamosa, United States
- FSD — Joe Foss Field Airport · Sioux Falls, 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 FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Frequently asked questions
How far is ALS from FSD?
The flight distance from Alamosa (ALS) to Sioux Falls (FSD) is 640 miles (1,030 km, 556 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALS to FSD?
A nonstop flight takes about 1h 51m 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 Sioux Falls?
Sioux Falls is 1 hour ahead of Alamosa.
What is the cheapest way to fly from ALS to FSD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALS–FSD that never appear on search engines, with no booking fees.