Glacier Park International in April 2025

92.7%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 April 2025, reporting carriers scheduled 206 domestic departures from Glacier Park International (FCA). 92.7% left less than 15 minutes late and 91.3% reached their destination on time; 0.5% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so FCA departures were 12.1 points above the national departure figure.

A year earlier, in April 2024, the airport had 195 departures with 88.7% leaving on time: a change of +4.0 points, with flights up 6%.

Flights arriving at FCA that month were on time 88.8% of the time (206 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 46%, late-arriving aircraft 40% and extreme weather 7%.

On time 91.3%
Arrived 15+ minutes late 7.3%
Cancelled 0.5%
Diverted 1.0%

Every scheduled departure from FCA in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	FCA, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	92.7%	88.7%	81.0%	80.6%
Arrived on time	91.3%	88.7%	80.1%	79.5%
Cancelled	0.5%	0.5%	0.9%	0.8%
Average departure delay (late minutes only)	4.0 min	9.3 min	17.8 min	14.1 min
Scheduled departures a day	7	7	11	19,465
Scheduled departures	206	195	4,115	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	62	30%	100.0%	-14.9 min	0.0%
DL Delta Air Lines	60	29%	90.0%	-3.4 min	0.0%
UA United Airlines	60	29%	85.0%	-2.7 min	0.0%
G4 Allegiant Air	24	12%	87.5%	-7.0 min	4.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
FCA–SLC	Kalispell to Salt Lake City	90	98.9%	-11.3 min	0.0%
FCA–DEN	Kalispell to Denver	60	85.0%	-2.7 min	0.0%
FCA–MSP	Kalispell to Minneapolis	30	83.3%	-3.2 min	0.0%
FCA–LAX	Kalispell to Los Angeles	9	77.8%	-9.0 min	11.1%
FCA–AZA	Kalispell to Phoenix	8	100.0%	-0.1 min	0.0%
FCA–LAS	Kalispell to Las Vegas	8	87.5%	-10.9 min	0.0%
FCA–SFO	Kalispell to San Francisco	1	100.0%	-14.0 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	6.9%	32.7%	56
Late-arriving aircraft	39.6%	39.4%	321
National Aviation System	46.0%	22.2%	373
Extreme weather	7.4%	5.5%	60
Security	0.0%	0.2%	0

810 delay minutes on 15 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 FCA on time in April 2025?

92.7% of 206 scheduled domestic departures left less than 15 minutes late, and 91.3% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 88.7% of 195 departures left on time and 0.5% were cancelled, against 92.7% and 0.5% in April 2025.

Provenance

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