Direct (nonstop) flights from Alamosa to Denver
1 airline flys nonstop from San Luis Valley Regional Airport (ALS) to Denver International (DEN). It's 178 miles (287 km), about 55m in the air. Operated by Key Lime Air.
Key Lime Air
Route data last updated: May 30, 2026
Airlines with non-stop flights
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DEN → ALS: Flights from Denver to AlamosaDirect flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Alamosa to Denver?
A nonstop flight from Alamosa (ALS) to Denver (DEN) takes approximately 0 hours and 55 minutes. The distance is 178 miles (287 km).
Which airlines fly nonstop from Alamosa to Denver?
Just Key Lime Air.
Is there a nonstop flight from Alamosa to Denver?
Yes. 1 airline: Key Lime Air.
How far is Alamosa from Denver?
The flight distance from Alamosa to Denver is 178 miles (287 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Alamosa to Denver?
At 55m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Alamosa to Denver?
Roughly 33 kg CO2 per passenger one-way. That's about the same as driving 165 km.
Is the return flight from Denver to Alamosa also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Alamosa to Denver?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Luis Valley Regional Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.