Aspen Pitkin County Sardy Field in August 2023

75.5%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 August 2023, reporting carriers scheduled 628 domestic departures from Aspen Pitkin County Sardy Field (ASE). 75.5% left less than 15 minutes late and 75.0% reached their destination on time; 0.8% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so ASE departures were 1.2 points below the national departure figure.

Flights arriving at ASE that month were on time 77.2% of the time (627 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 60%, late-arriving aircraft 21% and extreme weather 13%.

On time 75.0%
Arrived 15+ minutes late 22.3%
Cancelled 0.8%
Diverted 1.9%

Every scheduled departure from ASE in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	ASE, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	75.5%	—	66.5%	76.7%
Arrived on time	75.0%	—	66.5%	76.9%
Cancelled	0.8%	—	5.9%	1.5%
Average departure delay (late minutes only)	23.5 min	—	32.2 min	17.3 min
Scheduled departures a day	21	—	22	20,100
Scheduled departures	628	—	8,072	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	628	100%	75.0%	12.8 min	0.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ASE–DEN	Aspen to Denver	248	71.0%	15.3 min	0.8%
ASE–DFW	Aspen to Dallas/Fort Worth	101	82.2%	16.3 min	0.0%
ASE–LAX	Aspen to Los Angeles	93	87.1%	-5.3 min	2.2%
ASE–IAH	Aspen to Houston	62	72.6%	9.7 min	1.6%
ASE–ORD	Aspen to Chicago	62	77.4%	19.3 min	0.0%
ASE–AUS	Aspen to Austin	31	51.6%	39.4 min	0.0%
ASE–SFO	Aspen to San Francisco	31	71.0%	4.3 min	0.0%

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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	59.8%	36.7%	8,327
Late-arriving aircraft	20.8%	42.2%	2,893
National Aviation System	7.0%	15.7%	970
Extreme weather	12.5%	5.1%	1,744
Security	0.0%	0.2%	0

13,934 delay minutes on 140 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 August 2023?

75.5% of 628 scheduled domestic departures left less than 15 minutes late, and 75.0% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2023; 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.