Montrose Regional in September 2025

78.7%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 September 2025, reporting carriers scheduled 174 domestic departures from Montrose Regional (MTJ). 78.7% left less than 15 minutes late and 74.1% 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 MTJ departures were 4.4 points below the national departure figure.

A year earlier, in September 2024, the airport had 195 departures with 88.7% leaving on time: a change of −10.0 points, with flights down 11%.

Flights arriving at MTJ that month were on time 79.9% of the time (174 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 34% and national aviation system 22%.

On time 74.1%
Arrived 15+ minutes late 25.9%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from MTJ 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	MTJ, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	78.7%	88.7%	77.2%	83.1%
Arrived on time	74.1%	89.2%	77.5%	82.8%
Cancelled	0.0%	0.0%	1.2%	0.5%
Average departure delay (late minutes only)	24.5 min	14.3 min	23.0 min	12.2 min
Scheduled departures a day	6	7	7	18,748
Scheduled departures	174	195	2,526	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	90	52%	70.0%	12.0 min	0.0%
AA American Airlines	32	18%	78.1%	37.8 min	0.0%
MQ Envoy Air	24	14%	79.2%	11.9 min	0.0%
WN Southwest Airlines	21	12%	81.0%	3.1 min	0.0%
OO SkyWest Airlines	7	4%	71.4%	38.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MTJ–DEN	Montrose/Delta to Denver	111	72.1%	10.3 min	0.0%
MTJ–DFW	Montrose/Delta to Dallas/Fort Worth	56	78.6%	26.7 min	0.0%
MTJ–ORD	Montrose/Delta to Chicago	7	71.4%	38.1 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	43.0%	34.3%	1,758
Late-arriving aircraft	34.2%	37.4%	1,401
National Aviation System	22.0%	22.6%	901
Extreme weather	0.8%	5.6%	33
Security	0.0%	0.1%	0

4,093 delay minutes on 45 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 MTJ on time in September 2025?

78.7% of 174 scheduled domestic departures left less than 15 minutes late, and 74.1% 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, 88.7% of 195 departures left on time and 0.0% were cancelled, against 78.7% 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 MTJ · methodology · corrections.