Helena Regional in March 2025

95.2%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 March 2025, reporting carriers scheduled 124 domestic departures from Helena Regional (HLN). 95.2% left less than 15 minutes late and 91.9% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so HLN departures were 15.3 points above the national departure figure.

A year earlier, in March 2024, the airport had 137 departures with 92.7% leaving on time: a change of +2.5 points, with flights down 9%.

Flights arriving at HLN that month were on time 91.1% of the time (124 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 45% and national aviation system 5%.

On time 91.9%
Arrived 15+ minutes late 7.3%
Cancelled 0.0%
Diverted 0.8%

Every scheduled departure from HLN in March 2025, judged by arrival at the destination.

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

Measure	Mar 2025	Mar 2024	HLN, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	95.2%	92.7%	89.3%	79.9%
Arrived on time	91.9%	86.1%	87.5%	79.3%
Cancelled	0.0%	1.5%	0.4%	1.2%
Average departure delay (late minutes only)	5.5 min	6.1 min	11.4 min	14.9 min
Scheduled departures a day	4	5	4	20,029
Scheduled departures	124	137	1,549	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	124	100%	91.9%	-10.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	62	85.5%	-3.3 min	0.0%
HLN–SLC	Helena to Salt Lake City	62	98.4%	-18.2 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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	44.8%	33.0%	308
Late-arriving aircraft	48.0%	39.2%	330
National Aviation System	4.7%	21.9%	32
Extreme weather	2.5%	5.9%	17
Security	0.0%	0.1%	0

687 delay minutes on 9 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 HLN on time in March 2025?

95.2% of 124 scheduled domestic departures left less than 15 minutes late, and 91.9% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 92.7% of 137 departures left on time and 1.5% were cancelled, against 95.2% and 0.0% in March 2025.

Provenance

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