Billings Logan International in January 2025

84.3%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 January 2025, reporting carriers scheduled 364 domestic departures from Billings Logan International (BIL). 84.3% left less than 15 minutes late and 78.0% reached their destination on time; 0.8% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so BIL departures were 5.0 points above the national departure figure.

A year earlier, in January 2024, the airport had 278 departures with 81.3% leaving on time: a change of +3.0 points, with flights up 31%.

Flights arriving at BIL that month were on time 77.3% of the time (365 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 35%, air carrier 30% and late-arriving aircraft 25%.

On time 78.0%
Arrived 15+ minutes late 20.9%
Cancelled 0.8%
Diverted 0.3%

Every scheduled departure from BIL in January 2025, judged by arrival at the destination.

January 2025 against a year earlier, the airport's year and the nation

Measure	Jan 2025	Jan 2024	BIL, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	84.3%	81.3%	87.4%	79.3%
Arrived on time	78.0%	74.8%	84.7%	78.6%
Cancelled	0.8%	1.4%	0.6%	3.0%
Average departure delay (late minutes only)	12.3 min	15.6 min	11.8 min	14.0 min
Scheduled departures a day	12	9	13	17,992
Scheduled departures	364	278	4,642	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	119	33%	83.2%	-1.9 min	0.0%
MQ Envoy Air	92	25%	81.5%	-5.3 min	2.2%
DL Delta Air Lines	62	17%	79.0%	2.2 min	0.0%
UA United Airlines	62	17%	71.0%	13.0 min	1.6%
G4 Allegiant Air	29	8%	58.6%	10.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	124	72.6%	8.7 min	0.8%
BIL–SLC	Billings to Salt Lake City	88	87.5%	-2.1 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	62	75.8%	3.8 min	3.2%
BIL–MSP	Billings to Minneapolis	31	80.6%	-6.1 min	0.0%
BIL–PHX	Billings to Phoenix	30	93.3%	-23.4 min	0.0%
BIL–AZA	Billings to Phoenix	18	61.1%	12.3 min	0.0%
BIL–LAS	Billings to Las Vegas	11	54.5%	6.5 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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	30.3%	36.2%	1,594
Late-arriving aircraft	25.4%	34.7%	1,338
National Aviation System	34.6%	19.9%	1,822
Extreme weather	9.0%	9.1%	476
Security	0.7%	0.2%	36

5,266 delay minutes on 76 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 BIL on time in January 2025?

84.3% of 364 scheduled domestic departures left less than 15 minutes late, and 78.0% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 81.3% of 278 departures left on time and 1.4% were cancelled, against 84.3% and 0.8% in January 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BIL · methodology · corrections.