Aspen Pitkin County Sardy Field in November 2025

85.4%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In November 2025, reporting carriers scheduled 328 domestic departures from Aspen Pitkin County Sardy Field (ASE). 85.4% left less than 15 minutes late and 84.1% reached their destination on time; 3.7% were cancelled.

Nationally that month, 78.1% of flights departed on time and 77.3% arrived on time, so ASE departures were 7.3 points above the national departure figure.

A year earlier, in November 2024, the airport had 410 departures with 68.8% leaving on time: a change of +16.6 points, with flights down 20%.

Flights arriving at ASE that month were on time 83.2% of the time (327 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 53%, extreme weather 36% and late-arriving aircraft 8%.

On time 84.1%
Arrived 15+ minutes late 11.9%
Cancelled 3.7%
Diverted 0.3%

Every scheduled departure from ASE in November 2025, judged by arrival at the destination.

November 2025 against a year earlier, the airport's year and the nation

Measure	Nov 2025	Nov 2024	ASE, 12 months to Jul 2026	All reported flights, Nov 2025
Departed on time	85.4%	68.8%	66.5%	78.1%
Arrived on time	84.1%	67.3%	66.5%	77.3%
Cancelled	3.7%	10.7%	5.9%	2.5%
Average departure delay (late minutes only)	14.8 min	22.1 min	32.2 min	15.6 min
Scheduled departures a day	11	14	22	19,018
Scheduled departures	328	410	8,072	570,550

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	328	100%	84.1%	-0.6 min	3.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	179	82.1%	3.8 min	3.9%
ASE–LAX	Aspen to Los Angeles	60	88.3%	-7.6 min	3.3%
ASE–DFW	Aspen to Dallas/Fort Worth	59	79.7%	1.4 min	3.4%
ASE–ATL	Aspen to Atlanta	30	96.7%	-16.2 min	3.3%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), November 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2025	Minutes
Air carrier	52.7%	30.2%	2,383
Late-arriving aircraft	7.6%	38.3%	343
National Aviation System	2.8%	26.7%	126
Extreme weather	36.3%	4.6%	1,641
Security	0.7%	0.1%	32

4,525 delay minutes on 39 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left ASE on time in November 2025?

85.4% of 328 scheduled domestic departures left less than 15 minutes late, and 84.1% reached their destination on time. The national figures that month were 78.1% and 77.3%.

How does that compare with a year earlier?

In November 2024, 68.8% of 410 departures left on time and 10.7% were cancelled, against 85.4% and 3.7% in November 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for November 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ASE · methodology · corrections.