Great Falls International in December 2023

91.9%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 December 2023, reporting carriers scheduled 211 domestic departures from Great Falls International (GTF). 91.9% left less than 15 minutes late and 90.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so GTF departures were 8.8 points above the national departure figure.

Flights arriving at GTF that month were on time 89.6% of the time (211 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 81%, national aviation system 7% and late-arriving aircraft 7%.

On time 90.5%
Arrived 15+ minutes late 9.5%
Cancelled 0.0%
Diverted 0.0%

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

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

Measure	Dec 2023	Year earlier	GTF, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	91.9%	—	88.2%	83.1%
Arrived on time	90.5%	—	87.7%	83.8%
Cancelled	0.0%	—	0.8%	0.4%
Average departure delay (late minutes only)	11.0 min	—	10.6 min	11.6 min
Scheduled departures a day	7	—	6	19,013
Scheduled departures	211	—	2,168	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	189	90%	92.1%	-8.1 min	0.0%
G4 Allegiant Air	22	10%	77.3%	40.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GTF–SLC	Great Falls to Salt Lake City	83	91.6%	-7.3 min	0.0%
GTF–DEN	Great Falls to Denver	62	91.9%	-8.4 min	0.0%
GTF–MSP	Great Falls to Minneapolis	31	93.5%	-10.0 min	0.0%
GTF–LAS	Great Falls to Las Vegas	13	76.9%	-9.0 min	0.0%
GTF–SEA	Great Falls to Seattle	13	92.3%	-7.6 min	0.0%
GTF–AZA	Great Falls to Phoenix	9	77.8%	111.8 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	81.2%	37.1%	1,741
Late-arriving aircraft	6.6%	38.8%	142
National Aviation System	7.0%	17.6%	150
Extreme weather	5.1%	6.2%	110
Security	0.0%	0.3%	0

2,143 delay minutes on 20 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 December 2023?

91.9% of 211 scheduled domestic departures left less than 15 minutes late, and 90.5% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 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 December 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.