Helena Regional in May 2024

87.9%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 May 2024, reporting carriers scheduled 124 domestic departures from Helena Regional (HLN). 87.9% left less than 15 minutes late and 86.3% reached their destination on time; 0.0% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so HLN departures were 14.5 points above the national departure figure.

Flights arriving at HLN that month were on time 88.7% of the time (124 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 68%, national aviation system 15% and extreme weather 12%.

On time 86.3%
Arrived 15+ minutes late 13.7%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from HLN in May 2024, judged by arrival at the destination.

May 2024 against a year earlier, the airport's year and the nation

Measure	May 2024	Year earlier	HLN, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	87.9%	—	89.3%	73.4%
Arrived on time	86.3%	—	87.5%	72.3%
Cancelled	0.0%	—	0.4%	1.4%
Average departure delay (late minutes only)	16.9 min	—	11.4 min	20.8 min
Scheduled departures a day	4	—	4	20,325
Scheduled departures	124	—	1,549	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	124	100%	86.3%	4.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–DEN	Helena to Denver	62	79.0%	6.7 min	0.0%
HLN–SLC	Helena to Salt Lake City	62	93.5%	2.3 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	67.8%	29.8%	1,411
Late-arriving aircraft	5.5%	43.0%	114
National Aviation System	15.0%	20.1%	313
Extreme weather	11.6%	7.0%	242
Security	0.0%	0.1%	0

2,080 delay minutes on 17 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 May 2024?

87.9% of 124 scheduled domestic departures left less than 15 minutes late, and 86.3% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2024; 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.