Denver to Alamosa (DEN-ALS): nonstop flights and who flies them

Key Lime Air flies the DEN to ALS nonstop about 12 times a week. In the timetable below it flies as KG 3583 and KG 3587, scheduled at 50 minutes to 55 minutes for the 179 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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12
Flights a week, 4-week average
50 minutes to 55 minutes
Scheduled flight time
179 mi
Nonstop distance
Free
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Denver to Alamosa flight schedule

Scheduled nonstop departures for DEN to ALS starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Denver (DEN) to Alamosa (ALS)
Date Flight Airline Departs DEN Arrives ALS Duration Aircraft
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3587Key Lime Air17:1518:1055 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3587Key Lime Air17:1518:1055 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3587Key Lime Air17:1518:1055 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3587Key Lime Air17:1518:1055 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3583Key Lime Air12:4013:3050 minutesEmbraer ERJ-145
KG 3587Key Lime Air17:1518:1055 minutesEmbraer ERJ-145

Showing all 12 scheduled DEN to ALS departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every DEN to ALS date on the interactive map

Aircraft on the Denver to Alamosa nonstop

Key Lime Air flies the Embraer ERJ-145 on every departure in the schedule table on this page.

The full DEN to ALS nonstop schedule

This page carries the full DEN to ALS nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each DEN to ALS nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See DEN to ALS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Denver to Alamosa nonstop

Carriers operating DEN to ALS nonstop in the current schedule.

See DEN to ALS on the interactive map →

Frequently asked questions about DEN to ALS

How long is the flight from Denver (DEN) to Alamosa (ALS)?
Scheduled flight times from Denver (DEN) to Alamosa (ALS) run from 50 minutes to 55 minutes across the departures in the schedule table on this page. The nonstop covers about 179 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from DEN to ALS?
Key Lime Air is currently the only airline flying DEN to ALS nonstop. 2LNR doesn't show award or upgrade space for it on DEN to ALS, so this page carries the schedule rather than a space claim.
How many flights a week are there from DEN to ALS?
About 12 nonstop flights a week run between Denver (DEN) and Alamosa (ALS) in the current schedule, operated by Key Lime Air. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from DEN to ALS depart?
Scheduled DEN to ALS nonstops in the next 7 days with service leave between 12:40 and 17:15, local time at Denver. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate DEN to ALS nonstop?
In the schedule table on this page, DEN to ALS nonstops fly as KG 3583 and KG 3587 on Key Lime Air. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on DEN to ALS?
Not on this route: 2LNR doesn't show award or upgrade space for Key Lime Air on DEN to ALS. The page carries the full DEN to ALS nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full DEN to ALS nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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