Aspen Pitkin County Sardy Field in January 2025

60.7%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 January 2025, reporting carriers scheduled 1,025 domestic departures from Aspen Pitkin County Sardy Field (ASE). 60.7% left less than 15 minutes late and 62.9% reached their destination on time; 5.3% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so ASE departures were 18.6 points below the national departure figure.

A year earlier, in January 2024, the airport had 971 departures with 56.7% leaving on time: a change of +4.0 points, with flights up 6%.

Flights arriving at ASE that month were on time 62.1% of the time (1,023 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 31%, extreme weather 28% and air carrier 26%.

On time 62.9%
Arrived 15+ minutes late 31.7%
Cancelled 5.3%
Diverted 0.1%

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

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

Measure	Jan 2025	Jan 2024	ASE, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	60.7%	56.7%	66.5%	79.3%
Arrived on time	62.9%	58.6%	66.5%	78.6%
Cancelled	5.3%	11.0%	5.9%	3.0%
Average departure delay (late minutes only)	39.7 min	34.9 min	32.2 min	14.0 min
Scheduled departures a day	34	32	22	17,992
Scheduled departures	1,025	971	8,072	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	1,025	100%	62.9%	25.9 min	5.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	285	68.8%	10.8 min	3.2%
ASE–DFW	Aspen to Dallas/Fort Worth	159	58.5%	29.3 min	9.4%
ASE–LAX	Aspen to Los Angeles	157	62.4%	38.8 min	5.7%
ASE–ORD	Aspen to Chicago	143	59.4%	28.7 min	3.5%
ASE–IAH	Aspen to Houston	95	53.7%	27.5 min	7.4%
ASE–ATL	Aspen to Atlanta	62	51.6%	104.7 min	4.8%
ASE–SFO	Aspen to San Francisco	62	74.2%	-11.5 min	3.2%
ASE–AUS	Aspen to Austin	31	74.2%	5.8 min	3.2%
ASE–PHX	Aspen to Phoenix	31	67.7%	7.0 min	9.7%

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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	26.3%	36.2%	9,612
Late-arriving aircraft	14.9%	34.7%	5,420
National Aviation System	31.0%	19.9%	11,297
Extreme weather	27.8%	9.1%	10,151
Security	0.0%	0.2%	0

36,480 delay minutes on 325 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 January 2025?

60.7% of 1,025 scheduled domestic departures left less than 15 minutes late, and 62.9% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 56.7% of 971 departures left on time and 11.0% were cancelled, against 60.7% and 5.3% in January 2025.

Provenance

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