Great Falls International in April 2024

91.5%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 April 2024, reporting carriers scheduled 223 domestic departures from Great Falls International (GTF). 91.5% left less than 15 minutes late and 88.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so GTF departures were 11.0 points above the national departure figure.

Flights arriving at GTF that month were on time 92.4% of the time (223 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 57%, extreme weather 23% and late-arriving aircraft 17%.

On time 88.8%
Arrived 15+ minutes late 11.2%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from GTF in April 2024, judged by arrival at the destination.

April 2024 against a year earlier, the airport's year and the nation

Measure	Apr 2024	Year earlier	GTF, 12 months to Jul 2026	All reported flights, Apr 2024
Departed on time	91.5%	—	88.2%	80.5%
Arrived on time	88.8%	—	87.7%	80.2%
Cancelled	0.0%	—	0.8%	0.7%
Average departure delay (late minutes only)	12.9 min	—	10.6 min	14.2 min
Scheduled departures a day	7	—	6	19,406
Scheduled departures	223	—	2,168	582,185

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	206	92%	89.3%	-1.3 min	0.0%
G4 Allegiant Air	17	8%	82.4%	49.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GTF–SLC	Great Falls to Salt Lake City	86	91.9%	-2.4 min	0.0%
GTF–DEN	Great Falls to Denver	60	91.7%	-8.5 min	0.0%
GTF–MSP	Great Falls to Minneapolis	30	90.0%	5.9 min	0.0%
GTF–SEA	Great Falls to Seattle	30	76.7%	8.6 min	0.0%
GTF–LAS	Great Falls to Las Vegas	9	66.7%	97.2 min	0.0%
GTF–AZA	Great Falls to Phoenix	8	100.0%	-3.6 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), April 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2024	Minutes
Air carrier	57.1%	33.6%	1,590
Late-arriving aircraft	16.8%	41.0%	468
National Aviation System	2.9%	20.0%	80
Extreme weather	23.3%	5.1%	648
Security	0.0%	0.2%	0

2,786 delay minutes on 25 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 April 2024?

91.5% of 223 scheduled domestic departures left less than 15 minutes late, and 88.8% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2024; 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.