Aspen Pitkin County Sardy Field in May 2026

87.4%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 May 2026, reporting carriers scheduled 182 domestic departures from Aspen Pitkin County Sardy Field (ASE). 87.4% left less than 15 minutes late and 86.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so ASE departures were 10.3 points above the national departure figure.

A year earlier, in May 2025, the airport had 55 departures with 78.2% leaving on time: a change of +9.2 points, with flights up 231%.

Flights arriving at ASE that month were on time 82.5% of the time (189 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 51%, air carrier 22% and late-arriving aircraft 21%.

On time 86.8%
Arrived 15+ minutes late 12.1%
Cancelled 0.0%
Diverted 1.1%

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

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

Measure	May 2026	May 2025	ASE, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	87.4%	78.2%	66.5%	77.1%
Arrived on time	86.8%	74.5%	66.5%	77.6%
Cancelled	0.0%	0.0%	5.9%	0.9%
Average departure delay (late minutes only)	6.7 min	18.5 min	32.2 min	16.0 min
Scheduled departures a day	6	2	22	20,391
Scheduled departures	182	55	8,072	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	182	100%	86.8%	-5.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	75	88.0%	-7.2 min	0.0%
ASE–IAH	Aspen to Houston	20	100.0%	-11.8 min	0.0%
ASE–LAX	Aspen to Los Angeles	20	95.0%	-19.2 min	0.0%
ASE–ORD	Aspen to Chicago	20	80.0%	-0.1 min	0.0%
ASE–DFW	Aspen to Dallas/Fort Worth	17	88.2%	-20.1 min	0.0%
ASE–ATL	Aspen to Atlanta	10	100.0%	1.2 min	0.0%
ASE–AUS	Aspen to Austin	10	70.0%	17.3 min	0.0%
ASE–SFO	Aspen to San Francisco	10	50.0%	24.0 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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	21.7%	33.0%	280
Late-arriving aircraft	20.9%	40.4%	269
National Aviation System	51.4%	20.5%	663
Extreme weather	6.0%	6.0%	77
Security	0.0%	0.1%	0

1,289 delay minutes on 22 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 May 2026?

87.4% of 182 scheduled domestic departures left less than 15 minutes late, and 86.8% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 78.2% of 55 departures left on time and 0.0% were cancelled, against 87.4% and 0.0% in May 2026.

Provenance

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