Need help booking?
Unpublished phone-only deals available
ALS to DUC: distance & flight time
Alamosa (San Luis Valley Regional Bergman Field) → Duncan (Halliburton Field)
487 mi
784 km · 423 nm
1h 32m
estimated nonstop flight time
+1h
time difference · heading east
See live ALS→DUC fares Phone-only fares on this route — call free
Flight time details
487 miles nonstop takes roughly 1h 32m gate to gate, flying east. 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
- DUC — Halliburton Field · Duncan, 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 DUC
Frequently asked questions
How far is ALS from DUC?
The flight distance from Alamosa (ALS) to Duncan (DUC) is 487 miles (784 km, 423 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALS to DUC?
A nonstop flight takes about 1h 32m 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 ALS to DUC?
Nonstop service on ALS–DUC 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 1h 32m nonstop estimate.
What is the time difference between Alamosa and Duncan?
Duncan is 1 hour ahead of Alamosa.
What is the cheapest way to fly from ALS to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALS–DUC that never appear on search engines, with no booking fees.
Why are some ALS to DUC fares phone-only?
Consolidator contracts let us sell certain ALS–DUC 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.