Billings Logan International in January 2026

90.1%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 2026, reporting carriers scheduled 334 domestic departures from Billings Logan International (BIL). 90.1% left less than 15 minutes late and 88.0% reached their destination on time; 0.6% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so BIL departures were 14.5 points above the national departure figure.

A year earlier, in January 2025, the airport had 364 departures with 84.3% leaving on time: a change of +5.8 points, with flights down 8%.

Flights arriving at BIL that month were on time 80.5% of the time (333 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, late-arriving aircraft 25% and national aviation system 18%.

On time 88.0%
Arrived 15+ minutes late 10.8%
Cancelled 0.6%
Diverted 0.6%

Every scheduled departure from BIL in January 2026, judged by arrival at the destination.

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

Measure	Jan 2026	Jan 2025	BIL, 12 months to Jul 2026	All reported flights, Jan 2026
Departed on time	90.1%	84.3%	87.4%	75.6%
Arrived on time	88.0%	78.0%	84.7%	75.3%
Cancelled	0.6%	0.8%	0.6%	4.7%
Average departure delay (late minutes only)	7.1 min	12.3 min	11.8 min	16.7 min
Scheduled departures a day	11	12	13	18,133
Scheduled departures	334	364	4,642	544,003

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	117	35%	87.2%	-6.2 min	0.9%
MQ Envoy Air	67	20%	88.1%	-10.1 min	1.5%
DL Delta Air Lines	62	19%	90.3%	-11.9 min	0.0%
UA United Airlines	62	19%	87.1%	-9.6 min	0.0%
G4 Allegiant Air	26	8%	88.5%	-14.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	124	85.5%	-7.1 min	0.8%
BIL–SLC	Billings to Salt Lake City	86	93.0%	-11.2 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	36	80.6%	4.8 min	2.8%
BIL–MSP	Billings to Minneapolis	31	83.9%	-7.1 min	0.0%
BIL–PHX	Billings to Phoenix	31	96.8%	-27.0 min	0.0%
BIL–AZA	Billings to Phoenix	16	93.8%	-14.4 min	0.0%
BIL–LAS	Billings to Las Vegas	10	80.0%	-15.7 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2026	Minutes
Air carrier	46.8%	37.3%	1,046
Late-arriving aircraft	25.4%	35.0%	568
National Aviation System	17.7%	18.0%	396
Extreme weather	10.1%	9.6%	227
Security	0.0%	0.1%	0

2,237 delay minutes on 36 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 2026?

90.1% of 334 scheduled domestic departures left less than 15 minutes late, and 88.0% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 84.3% of 364 departures left on time and 0.8% were cancelled, against 90.1% and 0.6% in January 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for January 2026; 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.