Great Falls International in August 2023

87.8%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 August 2023, reporting carriers scheduled 229 domestic departures from Great Falls International (GTF). 87.8% left less than 15 minutes late and 83.4% reached their destination on time; 0.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so GTF departures were 11.1 points above the national departure figure.

Flights arriving at GTF that month were on time 84.7% of the time (229 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 29%, national aviation system 28% and extreme weather 22%.

On time 83.4%
Arrived 15+ minutes late 16.6%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from GTF in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	GTF, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	87.8%	—	88.2%	76.7%
Arrived on time	83.4%	—	87.7%	76.9%
Cancelled	0.0%	—	0.8%	1.5%
Average departure delay (late minutes only)	11.1 min	—	10.6 min	17.3 min
Scheduled departures a day	8	—	6	20,100
Scheduled departures	229	—	2,168	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	155	68%	90.3%	-1.9 min	0.0%
UA United Airlines	66	29%	69.7%	23.1 min	0.0%
G4 Allegiant Air	8	3%	62.5%	4.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GTF–SLC	Great Falls to Salt Lake City	93	93.5%	-3.3 min	0.0%
GTF–DEN	Great Falls to Denver	62	67.7%	25.9 min	0.0%
GTF–MSP	Great Falls to Minneapolis	31	96.8%	-1.4 min	0.0%
GTF–SEA	Great Falls to Seattle	31	74.2%	1.7 min	0.0%
GTF–LAS	Great Falls to Las Vegas	8	62.5%	4.4 min	0.0%
GTF–ORD	Great Falls to Chicago	4	100.0%	-20.0 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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	20.6%	36.7%	551
Late-arriving aircraft	29.3%	42.2%	785
National Aviation System	28.3%	15.7%	759
Extreme weather	21.9%	5.1%	586
Security	0.0%	0.2%	0

2,681 delay minutes on 38 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 August 2023?

87.8% of 229 scheduled domestic departures left less than 15 minutes late, and 83.4% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 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 August 2023; 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.