Helena Regional in December 2023

93.7%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 December 2023, reporting carriers scheduled 158 domestic departures from Helena Regional (HLN). 93.7% left less than 15 minutes late and 91.8% reached their destination on time; 1.3% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so HLN departures were 10.6 points above the national departure figure.

Flights arriving at HLN that month were on time 89.9% of the time (158 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, extreme weather 35% and late-arriving aircraft 20%.

On time 91.8%
Arrived 15+ minutes late 6.3%
Cancelled 1.3%
Diverted 0.6%

Every scheduled departure from HLN in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	HLN, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	93.7%	—	89.3%	83.1%
Arrived on time	91.8%	—	87.5%	83.8%
Cancelled	1.3%	—	0.4%	0.4%
Average departure delay (late minutes only)	9.2 min	—	11.4 min	11.6 min
Scheduled departures a day	5	—	4	19,013
Scheduled departures	158	—	1,549	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	158	100%	91.8%	-6.6 min	1.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HLN–SLC	Helena to Salt Lake City	65	93.8%	-6.5 min	1.5%
HLN–DEN	Helena to Denver	62	90.3%	-4.8 min	0.0%
HLN–SEA	Helena to Seattle	31	90.3%	-10.8 min	3.2%

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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	35.9%	37.1%	487
Late-arriving aircraft	19.5%	38.8%	265
National Aviation System	9.2%	17.6%	125
Extreme weather	35.4%	6.2%	481
Security	0.0%	0.3%	0

1,358 delay minutes on 10 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 December 2023?

93.7% of 158 scheduled domestic departures left less than 15 minutes late, and 91.8% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 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 December 2023; 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.