Helena Regional in March 2026

90.3%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 2026, reporting carriers scheduled 124 domestic departures from Helena Regional (HLN). 90.3% left less than 15 minutes late and 91.9% reached their destination on time; 0.8% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so HLN departures were 17.5 points above the national departure figure.

A year earlier, in March 2025, the airport had 124 departures with 95.2% leaving on time: a change of −4.9 points, with flights up 0%.

Flights arriving at HLN that month were on time 84.7% of the time (124 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 73%, air carrier 20% and late-arriving aircraft 7%.

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

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

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

Measure	Mar 2026	Mar 2025	HLN, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	90.3%	95.2%	89.3%	72.8%
Arrived on time	91.9%	91.9%	87.5%	73.2%
Cancelled	0.8%	0.0%	0.4%	2.9%
Average departure delay (late minutes only)	8.6 min	5.5 min	11.4 min	20.3 min
Scheduled departures a day	4	4	4	20,403
Scheduled departures	124	124	1,549	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	124	100%	91.9%	-6.1 min	0.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	62	87.1%	-0.9 min	1.6%
HLN–SLC	Helena to Salt Lake City	62	96.8%	-11.3 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	20.3%	33.5%	182
Late-arriving aircraft	6.5%	39.3%	58
National Aviation System	73.3%	21.0%	658
Extreme weather	0.0%	5.9%	0
Security	0.0%	0.2%	0

898 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 2026?

90.3% 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 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 95.2% of 124 departures left on time and 0.0% were cancelled, against 90.3% and 0.8% in March 2026.

Provenance

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