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SIR to ALS: distance & flight time
Sion (Sion Airport) → Alamosa (San Luis Valley Regional Bergman Field)
5,330 mi
8,578 km · 4,632 nm
10h 55m
estimated nonstop flight time
-8h
time difference · heading northwest
See live SIR→ALS fares Phone-only fares on this route — call free
Flight time details
5,330 miles nonstop takes roughly 10h 55m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- SIR — Sion Airport · Sion, Switzerland
- ALS — San Luis Valley Regional Bergman Field · Alamosa, 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 SIR
- AOT · Aosta Airport33 mi away
- QLS · Lausanne-Blécherette Airport41 mi away
- ZIN · Interlaken Air Base41 mi away
- MVV · Megève Airport43 mi away
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
Frequently asked questions
How far is SIR from ALS?
The flight distance from Sion (SIR) to Alamosa (ALS) is 5,330 miles (8,578 km, 4,632 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIR to ALS?
A nonstop flight takes about 10h 55m 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 Sion and Alamosa?
Alamosa is 8 hours behind Sion.
What is the cheapest way to fly from SIR to ALS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIR–ALS that never appear on search engines, with no booking fees.