Helena Regional in June 2026

90.8%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 June 2026, reporting carriers scheduled 120 domestic departures from Helena Regional (HLN). 90.8% left less than 15 minutes late and 82.5% reached their destination on time; 0.0% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so HLN departures were 18.6 points above the national departure figure.

A year earlier, in June 2025, the airport had 150 departures with 70.7% leaving on time: a change of +20.1 points, with flights down 20%.

Flights arriving at HLN that month were on time 78.3% of the time (120 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 58%, late-arriving aircraft 31% and national aviation system 11%.

On time 82.5%
Arrived 15+ minutes late 16.7%
Cancelled 0.0%
Diverted 0.8%

Every scheduled departure from HLN in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	HLN, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	90.8%	70.7%	89.3%	72.2%
Arrived on time	82.5%	68.7%	87.5%	72.8%
Cancelled	0.0%	1.3%	0.4%	1.6%
Average departure delay (late minutes only)	9.1 min	33.6 min	11.4 min	20.6 min
Scheduled departures a day	4	5	4	20,253
Scheduled departures	120	150	1,549	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	120	100%	82.5%	-1.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	60	71.7%	10.7 min	0.0%
HLN–SLC	Helena to Salt Lake City	60	93.3%	-12.5 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	58.0%	30.8%	697
Late-arriving aircraft	30.7%	42.1%	369
National Aviation System	11.3%	20.3%	136
Extreme weather	0.0%	6.7%	0
Security	0.0%	0.1%	0

1,202 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 HLN on time in June 2026?

90.8% of 120 scheduled domestic departures left less than 15 minutes late, and 82.5% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 70.7% of 150 departures left on time and 1.3% were cancelled, against 90.8% and 0.0% in June 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2026; 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.