Aspen Pitkin County Sardy Field in March 2025

55.6%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 March 2025, reporting carriers scheduled 1,081 domestic departures from Aspen Pitkin County Sardy Field (ASE). 55.6% left less than 15 minutes late and 57.1% reached their destination on time; 9.6% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so ASE departures were 24.3 points below the national departure figure.

A year earlier, in March 2024, the airport had 1,041 departures with 52.4% leaving on time: a change of +3.2 points, with flights up 4%.

Flights arriving at ASE that month were on time 59.1% of the time (1,082 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 44%, air carrier 23% and national aviation system 21%.

On time 57.1%
Arrived 15+ minutes late 32.7%
Cancelled 9.6%
Diverted 0.6%

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

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

Measure	Mar 2025	Mar 2024	ASE, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	55.6%	52.4%	66.5%	79.9%
Arrived on time	57.1%	53.6%	66.5%	79.3%
Cancelled	9.6%	10.8%	5.9%	1.2%
Average departure delay (late minutes only)	33.1 min	40.6 min	32.2 min	14.9 min
Scheduled departures a day	36	35	22	20,029
Scheduled departures	1,081	1,041	8,072	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	1,081	100%	57.1%	20.9 min	9.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	302	68.9%	7.6 min	8.6%
ASE–ORD	Aspen to Chicago	176	48.9%	38.4 min	8.0%
ASE–DFW	Aspen to Dallas/Fort Worth	155	52.3%	18.4 min	12.3%
ASE–LAX	Aspen to Los Angeles	147	65.3%	9.1 min	9.5%
ASE–IAH	Aspen to Houston	89	56.2%	26.8 min	10.1%
ASE–SFO	Aspen to San Francisco	85	57.6%	9.2 min	10.6%
ASE–ATL	Aspen to Atlanta	62	43.5%	56.0 min	9.7%
ASE–PHX	Aspen to Phoenix	34	35.3%	42.9 min	11.8%
ASE–AUS	Aspen to Austin	31	25.8%	40.9 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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	22.6%	33.0%	6,526
Late-arriving aircraft	12.2%	39.2%	3,516
National Aviation System	21.3%	21.9%	6,167
Extreme weather	43.8%	5.9%	12,674
Security	0.2%	0.1%	45

28,928 delay minutes on 353 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 March 2025?

55.6% of 1,081 scheduled domestic departures left less than 15 minutes late, and 57.1% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 52.4% of 1,041 departures left on time and 10.8% were cancelled, against 55.6% and 9.6% in March 2025.

Provenance

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