Aspen Pitkin County Sardy Field in April 2026

76.5%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 April 2026, reporting carriers scheduled 481 domestic departures from Aspen Pitkin County Sardy Field (ASE). 76.5% left less than 15 minutes late and 76.1% reached their destination on time; 2.9% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so ASE departures were 2.6 points below the national departure figure.

A year earlier, in April 2025, the airport had 502 departures with 66.1% leaving on time: a change of +10.4 points, with flights down 4%.

Flights arriving at ASE that month were on time 78.9% of the time (474 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 37%, air carrier 26% and late-arriving aircraft 20%.

On time 76.1%
Arrived 15+ minutes late 20.2%
Cancelled 2.9%
Diverted 0.8%

Every scheduled departure from ASE in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	ASE, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	76.5%	66.1%	66.5%	79.1%
Arrived on time	76.1%	60.6%	66.5%	78.9%
Cancelled	2.9%	6.2%	5.9%	0.9%
Average departure delay (late minutes only)	17.1 min	24.4 min	32.2 min	14.5 min
Scheduled departures a day	16	17	22	19,931
Scheduled departures	481	502	8,072	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	481	100%	76.1%	1.9 min	2.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	221	82.8%	-5.2 min	2.7%
ASE–LAX	Aspen to Los Angeles	67	82.1%	-7.7 min	3.0%
ASE–ORD	Aspen to Chicago	60	58.3%	34.5 min	1.7%
ASE–DFW	Aspen to Dallas/Fort Worth	47	66.0%	3.7 min	4.3%
ASE–ATL	Aspen to Atlanta	34	82.4%	-0.8 min	2.9%
ASE–IAH	Aspen to Houston	25	68.0%	3.2 min	0.0%
ASE–SFO	Aspen to San Francisco	12	41.7%	18.7 min	16.7%
ASE–AUS	Aspen to Austin	6	100.0%	-11.0 min	0.0%
ASE–PHX	Aspen to Phoenix	6	66.7%	17.8 min	0.0%
ASE–CLT	Aspen to Charlotte	3	66.7%	22.0 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	26.2%	33.5%	1,911
Late-arriving aircraft	20.4%	40.4%	1,488
National Aviation System	16.8%	21.0%	1,228
Extreme weather	36.6%	5.0%	2,676
Security	0.0%	0.1%	0

7,303 delay minutes on 97 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 April 2026?

76.5% of 481 scheduled domestic departures left less than 15 minutes late, and 76.1% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 66.1% of 502 departures left on time and 6.2% were cancelled, against 76.5% and 2.9% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.