Great Falls International in January 2025

88.7%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 January 2025, reporting carriers scheduled 221 domestic departures from Great Falls International (GTF). 88.7% left less than 15 minutes late and 80.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so GTF departures were 9.4 points above the national departure figure.

A year earlier, in January 2024, the airport had 217 departures with 78.8% leaving on time: a change of +9.9 points, with flights up 2%.

Flights arriving at GTF that month were on time 83.3% of the time (221 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 40%, air carrier 31% and national aviation system 19%.

On time 80.5%
Arrived 15+ minutes late 19.5%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from GTF in January 2025, judged by arrival at the destination.

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

Measure	Jan 2025	Jan 2024	GTF, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	88.7%	78.8%	88.2%	79.3%
Arrived on time	80.5%	77.0%	87.7%	78.6%
Cancelled	0.0%	1.8%	0.8%	3.0%
Average departure delay (late minutes only)	11.7 min	28.5 min	10.6 min	14.0 min
Scheduled departures a day	7	7	6	17,992
Scheduled departures	221	217	2,168	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	196	89%	83.2%	-2.6 min	0.0%
G4 Allegiant Air	18	8%	72.2%	51.6 min	0.0%
UA United Airlines	7	3%	28.6%	44.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GTF–SLC	Great Falls to Salt Lake City	84	89.3%	-6.9 min	0.0%
GTF–DEN	Great Falls to Denver	62	71.0%	5.7 min	0.0%
GTF–MSP	Great Falls to Minneapolis	31	77.4%	2.0 min	0.0%
GTF–SEA	Great Falls to Seattle	26	84.6%	-1.1 min	0.0%
GTF–AZA	Great Falls to Phoenix	9	77.8%	12.6 min	0.0%
GTF–LAS	Great Falls to Las Vegas	9	66.7%	90.7 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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	31.2%	36.2%	919
Late-arriving aircraft	9.8%	34.7%	288
National Aviation System	19.3%	19.9%	569
Extreme weather	39.7%	9.1%	1,170
Security	0.0%	0.2%	0

2,946 delay minutes on 43 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 GTF on time in January 2025?

88.7% of 221 scheduled domestic departures left less than 15 minutes late, and 80.5% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 78.8% of 217 departures left on time and 1.8% were cancelled, against 88.7% and 0.0% in January 2025.

Provenance

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