BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DEN→ASE

Denver, CO (DEN) to Aspen, CO (ASE) flight delay odds

69.8% of 2,715 official scheduled DEN-to-ASE flights arrived on time; 17.8% arrived at least 30 minutes late and 5.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALHigher disruption
69.8%arrived on time
17.8%30+ min late
5.2%cancelled
2,715scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.7%all scheduled flights
120+ minutes late4.4%all scheduled flights
Diverted1.4%did not reach as scheduled
Average arrival+16.2 mincompleted flights

Which departure time was most reliable for DEN to ASE?

Among qualifying DEN-to-ASE departure window results, Early morning had the highest on-time rate: 83.1% of 243 flights. Evening was lowest at 66.9% across 956 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24383.1%9.5%2.5%
Late morning64271.8%15.7%4.0%
Afternoon87267.9%18.9%6.7%
Evening95666.9%20.2%5.4%

Which weekday was most reliable for DEN to ASE?

Among qualifying DEN-to-ASE weekday results, Tuesday had the highest on-time rate: 76.4% of 382 flights. Friday was lowest at 63.3% across 395 flights.

DayFlightsOn time30+ minCancelled
Monday39570.1%18.0%3.3%
Tuesday38276.4%14.4%3.1%
Wednesday37676.3%13.8%4.8%
Thursday38769.0%17.8%3.9%
Friday39563.3%19.7%10.6%
Saturday38566.5%19.2%5.7%
Sunday39567.6%21.0%5.1%

Which airline was most reliable for DEN to ASE?

Only SkyWest Airlines met the DEN-to-ASE airline threshold: 69.8% of 2,715 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines2,71569.8%17.8%5.2%

Which month was most reliable for DEN to ASE?

Among qualifying DEN-to-ASE month results, November 2025 had the highest on-time rate: 83.2% of 179 flights. July 2025 was lowest at 54.3% across 245 flights.

MonthFlightsOn time30+ minCancelled
July 202524554.3%27.8%6.5%
August 202524459.0%25.8%4.1%
September 202522679.2%13.3%0.0%
October 202521081.9%11.9%0.0%
November 202517983.2%7.3%4.5%
December 202527059.3%27.8%5.2%
January 202625072.8%12.0%8.0%
February 202625465.0%20.1%11.4%
March 202631075.5%10.6%9.7%
April 202621883.0%10.1%2.8%
May 20267783.1%9.1%0.0%
June 202623257.3%28.0%3.9%

What drove DEN to ASE delay minutes?

National airspace was the largest recorded DEN-to-ASE delay category, accounting for 34.5% of 61,667 BTS-attributed delay minutes during July 2025–June 2026.

Airline22.1%
Late aircraft23.5%
National airspace34.5%
Weather19.9%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.