Aspen Pitkin County Sardy Field in October 2025

77.6%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 October 2025, reporting carriers scheduled 447 domestic departures from Aspen Pitkin County Sardy Field (ASE). 77.6% left less than 15 minutes late and 71.6% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so ASE departures were 2.4 points below the national departure figure.

A year earlier, in October 2024, the airport had 498 departures with 84.3% leaving on time: a change of −6.7 points, with flights down 10%.

Flights arriving at ASE that month were on time 78.0% of the time (446 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, extreme weather 36% and national aviation system 15%.

On time 71.6%
Arrived 15+ minutes late 27.3%
Cancelled 0.0%
Diverted 1.1%

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

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

Measure	Oct 2025	Oct 2024	ASE, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	77.6%	84.3%	66.5%	80.0%
Arrived on time	71.6%	81.7%	66.5%	79.1%
Cancelled	0.0%	0.6%	5.9%	0.5%
Average departure delay (late minutes only)	21.6 min	13.2 min	32.2 min	13.9 min
Scheduled departures a day	15	17	22	20,195
Scheduled departures	447	498	8,072	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	447	100%	71.6%	14.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	211	74.4%	8.4 min	0.0%
ASE–DFW	Aspen to Dallas/Fort Worth	66	63.6%	29.6 min	0.0%
ASE–LAX	Aspen to Los Angeles	62	74.2%	22.6 min	0.0%
ASE–ORD	Aspen to Chicago	56	66.1%	12.1 min	0.0%
ASE–ATL	Aspen to Atlanta	31	77.4%	2.6 min	0.0%
ASE–IAH	Aspen to Houston	21	66.7%	24.8 min	0.0%

By scheduled departure hour

100

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

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

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	42.1%	34.0%	4,172
Late-arriving aircraft	6.5%	39.7%	645
National Aviation System	15.3%	22.9%	1,514
Extreme weather	36.2%	3.3%	3,590
Security	0.0%	0.1%	0

9,921 delay minutes on 122 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 October 2025?

77.6% of 447 scheduled domestic departures left less than 15 minutes late, and 71.6% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 84.3% of 498 departures left on time and 0.6% were cancelled, against 77.6% and 0.0% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 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.