Yampa Valley in September 2025

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 September 2025, reporting carriers scheduled 111 domestic departures from Yampa Valley (HDN). 87.4% left less than 15 minutes late and 86.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so HDN departures were 4.3 points above the national departure figure.

A year earlier, in September 2024, the airport had 121 departures with 90.9% leaving on time: a change of −3.5 points, with flights down 8%.

Flights arriving at HDN that month were on time 83.8% of the time (111 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 61%, air carrier 26% and late-arriving aircraft 12%.

On time 86.5%
Arrived 15+ minutes late 13.5%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from HDN in September 2025, judged by arrival at the destination.

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

Measure	Sep 2025	Sep 2024	HDN, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	87.4%	90.9%	72.4%	83.1%
Arrived on time	86.5%	86.0%	74.2%	82.8%
Cancelled	0.0%	0.0%	1.0%	0.5%
Average departure delay (late minutes only)	9.1 min	7.4 min	24.2 min	12.2 min
Scheduled departures a day	4	4	7	18,748
Scheduled departures	111	121	2,393	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	54	49%	77.8%	7.0 min	0.0%
UA United Airlines	36	32%	94.4%	-17.4 min	0.0%
WN Southwest Airlines	21	19%	95.2%	-6.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HDN–DEN	Hayden to Denver	111	86.5%	-3.5 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), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	25.9%	34.3%	239
Late-arriving aircraft	11.5%	37.4%	106
National Aviation System	60.7%	22.6%	560
Extreme weather	0.0%	5.6%	0
Security	1.8%	0.1%	17

922 delay minutes on 15 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 HDN on time in September 2025?

87.4% of 111 scheduled domestic departures left less than 15 minutes late, and 86.5% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 90.9% of 121 departures left on time and 0.0% were cancelled, against 87.4% and 0.0% in September 2025.

Provenance

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