Helena Regional in July 2025

77.8%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 July 2025, reporting carriers scheduled 153 domestic departures from Helena Regional (HLN). 77.8% left less than 15 minutes late and 68.0% reached their destination on time; 1.3% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so HLN departures were 8.1 points above the national departure figure.

A year earlier, in July 2024, the airport had 124 departures with 88.7% leaving on time: a change of −10.9 points, with flights up 23%.

Flights arriving at HLN that month were on time 74.5% of the time (153 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 29%, late-arriving aircraft 28% and air carrier 26%.

On time 68.0%
Arrived 15+ minutes late 28.8%
Cancelled 1.3%
Diverted 2.0%

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

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

Measure	Jul 2025	Jul 2024	HLN, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	77.8%	88.7%	89.3%	69.7%
Arrived on time	68.0%	84.7%	87.5%	69.0%
Cancelled	1.3%	0.0%	0.4%	2.5%
Average departure delay (late minutes only)	25.9 min	19.3 min	11.4 min	24.3 min
Scheduled departures a day	5	4	4	21,048
Scheduled departures	153	124	1,549	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	153	100%	68.0%	21.4 min	1.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	91	48.4%	42.0 min	2.2%
HLN–SLC	Helena to Salt Lake City	62	96.8%	-7.2 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	25.7%	31.1%	1,130
Late-arriving aircraft	28.2%	40.8%	1,241
National Aviation System	29.2%	20.7%	1,283
Extreme weather	16.8%	7.3%	739
Security	0.0%	0.1%	0

4,393 delay minutes on 44 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 July 2025?

77.8% of 153 scheduled domestic departures left less than 15 minutes late, and 68.0% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 88.7% of 124 departures left on time and 0.0% were cancelled, against 77.8% and 1.3% in July 2025.

Provenance

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