Helena Regional in April 2025

87.6%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 129 domestic departures from Helena Regional (HLN). 87.6% left less than 15 minutes late and 83.7% reached their destination on time; 0.0% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so HLN departures were 7.0 points above the national departure figure.

A year earlier, in April 2024, the airport had 120 departures with 90.8% leaving on time: a change of −3.2 points, with flights up 7%.

Flights arriving at HLN that month were on time 86.8% of the time (129 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, national aviation system 38% and late-arriving aircraft 18%.

On time 83.7%
Arrived 15+ minutes late 16.3%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from HLN 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	HLN, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	87.6%	90.8%	89.3%	80.6%
Arrived on time	83.7%	94.2%	87.5%	79.5%
Cancelled	0.0%	0.0%	0.4%	0.8%
Average departure delay (late minutes only)	14.3 min	13.5 min	11.4 min	14.1 min
Scheduled departures a day	4	4	4	19,465
Scheduled departures	129	120	1,549	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	129	100%	83.7%	5.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	60	70.0%	26.5 min	0.0%
HLN–SLC	Helena to Salt Lake City	60	98.3%	-14.6 min	0.0%
HLN–SEA	Helena to Seattle	9	77.8%	5.0 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	40.9%	32.7%	862
Late-arriving aircraft	18.3%	39.4%	387
National Aviation System	38.1%	22.2%	804
Extreme weather	2.7%	5.5%	57
Security	0.0%	0.2%	0

2,110 delay minutes on 21 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 April 2025?

87.6% of 129 scheduled domestic departures left less than 15 minutes late, and 83.7% 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, 90.8% of 120 departures left on time and 0.0% were cancelled, against 87.6% and 0.0% 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 HLN · methodology · corrections.