Helena Regional in June 2025

70.7%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 June 2025, reporting carriers scheduled 150 domestic departures from Helena Regional (HLN). 70.7% left less than 15 minutes late and 68.7% reached their destination on time; 1.3% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so HLN departures were 0.7 points below the national departure figure.

A year earlier, in June 2024, the airport had 120 departures with 88.3% leaving on time: a change of −17.6 points, with flights up 25%.

Flights arriving at HLN that month were on time 74.7% of the time (150 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, national aviation system 38% and late-arriving aircraft 12%.

On time 68.7%
Arrived 15+ minutes late 27.3%
Cancelled 1.3%
Diverted 2.7%

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

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

Measure	Jun 2025	Jun 2024	HLN, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	70.7%	88.3%	89.3%	71.4%
Arrived on time	68.7%	85.8%	87.5%	70.3%
Cancelled	1.3%	0.0%	0.4%	1.6%
Average departure delay (late minutes only)	33.6 min	19.4 min	11.4 min	22.1 min
Scheduled departures a day	5	4	4	20,386
Scheduled departures	150	120	1,549	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	150	100%	68.7%	24.6 min	1.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	90	50.0%	51.3 min	2.2%
HLN–SLC	Helena to Salt Lake City	60	96.7%	-12.7 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	42.9%	31.6%	2,140
Late-arriving aircraft	12.4%	40.6%	618
National Aviation System	37.9%	20.9%	1,889
Extreme weather	6.8%	6.9%	341
Security	0.0%	0.2%	0

4,988 delay minutes on 41 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 June 2025?

70.7% of 150 scheduled domestic departures left less than 15 minutes late, and 68.7% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 88.3% of 120 departures left on time and 0.0% were cancelled, against 70.7% and 1.3% in June 2025.

Provenance

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