Yellowstone Regional in August 2025

70.7%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 August 2025, reporting carriers scheduled 123 domestic departures from Yellowstone Regional (COD). 70.7% left less than 15 minutes late and 63.4% reached their destination on time; 1.6% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so COD departures were 6.1 points below the national departure figure.

A year earlier, in August 2024, the airport had 113 departures with 69.0% leaving on time: a change of +1.7 points, with flights up 9%.

Flights arriving at COD that month were on time 74.0% of the time (123 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 46%, national aviation system 29% and late-arriving aircraft 17%.

On time 63.4%
Arrived 15+ minutes late 33.3%
Cancelled 1.6%
Diverted 1.6%

Every scheduled departure from COD in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	COD, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	70.7%	69.0%	73.5%	76.8%
Arrived on time	63.4%	71.7%	70.1%	76.3%
Cancelled	1.6%	0.0%	1.0%	1.1%
Average departure delay (late minutes only)	21.6 min	30.8 min	28.7 min	17.6 min
Scheduled departures a day	4	4	3	20,079
Scheduled departures	123	113	943	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	123	100%	63.4%	14.6 min	1.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
COD–DEN	Cody to Denver	123	63.4%	14.6 min	1.6%

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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	46.2%	33.1%	1,218
Late-arriving aircraft	17.3%	40.5%	457
National Aviation System	29.3%	19.2%	772
Extreme weather	7.3%	7.0%	192
Security	0.0%	0.1%	0

2,639 delay minutes on 41 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 COD on time in August 2025?

70.7% of 123 scheduled domestic departures left less than 15 minutes late, and 63.4% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 69.0% of 113 departures left on time and 0.0% were cancelled, against 70.7% and 1.6% in August 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for COD · methodology · corrections.