Gunnison-Crested Butte Regional in December 2025

86.9%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 December 2025, reporting carriers scheduled 107 domestic departures from Gunnison-Crested Butte Regional (GUC). 86.9% left less than 15 minutes late and 79.4% reached their destination on time; 0.0% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so GUC departures were 14.9 points above the national departure figure.

A year earlier, in December 2024, the airport had 98 departures with 82.7% leaving on time: a change of +4.2 points, with flights up 9%.

Flights arriving at GUC that month were on time 79.4% of the time (107 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 62%, national aviation system 17% and late-arriving aircraft 11%.

On time 79.4%
Arrived 15+ minutes late 19.6%
Cancelled 0.0%
Diverted 0.9%

Every scheduled departure from GUC in December 2025, judged by arrival at the destination.

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

Measure	Dec 2025	Dec 2024	GUC, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	86.9%	82.7%	82.4%	72.0%
Arrived on time	79.4%	82.7%	80.5%	71.9%
Cancelled	0.0%	2.0%	2.1%	1.5%
Average departure delay (late minutes only)	23.8 min	40.5 min	17.8 min	21.2 min
Scheduled departures a day	4	3	4	19,410
Scheduled departures	107	98	1,268	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	107	100%	79.4%	18.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GUC–DEN	Gunnison to Denver	75	77.3%	11.9 min	0.0%
GUC–DFW	Gunnison to Dallas/Fort Worth	28	85.7%	39.1 min	0.0%
GUC–ORD	Gunnison to Chicago	4	75.0%	3.8 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), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	61.9%	33.3%	1,725
Late-arriving aircraft	11.4%	41.1%	317
National Aviation System	16.5%	19.1%	460
Extreme weather	10.2%	6.4%	284
Security	0.0%	0.2%	0

2,786 delay minutes on 21 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 GUC on time in December 2025?

86.9% of 107 scheduled domestic departures left less than 15 minutes late, and 79.4% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 82.7% of 98 departures left on time and 2.0% were cancelled, against 86.9% and 0.0% in December 2025.

Provenance

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