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

Key Lime Air flies the ALS to DEN nonstop about 12 times a week. In the timetable below it flies as KG 3581 and KG 3585, scheduled at 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 .

See ALS to DEN on the interactive map Get started free
12
Flights a week, 4-week average
55 minutes
Scheduled flight time
179 mi
Nonstop distance
Free
To get started

Alamosa to Denver flight schedule

Scheduled nonstop departures for ALS to DEN 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 Alamosa (ALS) to Denver (DEN)
Date Flight Airline Departs ALS Arrives DEN Duration Aircraft
KG 3581Key Lime Air07:4508:4055 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3581Key Lime Air07:4508:4055 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3581Key Lime Air07:4508:4055 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3581Key Lime Air07:4508:4055 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3581Key Lime Air07:4508:4055 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145
KG 3585Key Lime Air14:0014:5555 minutesEmbraer ERJ-145

Showing all 12 scheduled ALS to DEN 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 ALS to DEN date on the interactive map

Aircraft on the Alamosa to Denver nonstop

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

The full ALS to DEN nonstop schedule

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

See the schedule

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

Plan on the map

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

Airlines flying Alamosa to Denver nonstop

Carriers operating ALS to DEN nonstop in the current schedule.

See ALS to DEN on the interactive map →

Frequently asked questions about ALS to DEN

How long is the flight from Alamosa (ALS) to Denver (DEN)?
Every departure in the schedule table on this page is scheduled at 55 minutes from Alamosa (ALS) to Denver (DEN). 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 ALS to DEN?
Key Lime Air is currently the only airline flying ALS to DEN nonstop. 2LNR doesn't show award or upgrade space for it on ALS to DEN, so this page carries the schedule rather than a space claim.
How many flights a week are there from ALS to DEN?
About 12 nonstop flights a week run between Alamosa (ALS) and Denver (DEN) 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 ALS to DEN depart?
Scheduled ALS to DEN nonstops in the next 7 days with service leave between 07:45 and 14:00, local time at Alamosa. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate ALS to DEN nonstop?
In the schedule table on this page, ALS to DEN nonstops fly as KG 3581 and KG 3585 on Key Lime Air. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on ALS to DEN?
Not on this route: 2LNR doesn't show award or upgrade space for Key Lime Air on ALS to DEN. The page carries the full ALS to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full ALS to DEN 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.

Get started free