Billings Logan International in March 2025

90.9%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 March 2025, reporting carriers scheduled 372 domestic departures from Billings Logan International (BIL). 90.9% left less than 15 minutes late and 85.5% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so BIL departures were 11.0 points above the national departure figure.

A year earlier, in March 2024, the airport had 276 departures with 88.8% leaving on time: a change of +2.1 points, with flights up 35%.

Flights arriving at BIL that month were on time 86.1% of the time (373 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, national aviation system 35% and late-arriving aircraft 12%.

On time 85.5%
Arrived 15+ minutes late 14.0%
Cancelled 0.5%
Diverted 0.0%

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

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

Measure	Mar 2025	Mar 2024	BIL, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	90.9%	88.8%	87.4%	79.9%
Arrived on time	85.5%	80.8%	84.7%	79.3%
Cancelled	0.5%	0.7%	0.6%	1.2%
Average departure delay (late minutes only)	5.5 min	11.1 min	11.8 min	14.9 min
Scheduled departures a day	12	9	13	20,029
Scheduled departures	372	276	4,642	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	123	33%	91.9%	-8.3 min	0.0%
MQ Envoy Air	93	25%	80.6%	-6.2 min	1.1%
DL Delta Air Lines	62	17%	88.7%	2.2 min	0.0%
UA United Airlines	62	17%	82.3%	-3.9 min	1.6%
G4 Allegiant Air	32	9%	75.0%	4.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	125	86.4%	-5.4 min	0.8%
BIL–SLC	Billings to Salt Lake City	91	94.5%	-10.8 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	62	74.2%	-1.5 min	1.6%
BIL–MSP	Billings to Minneapolis	31	80.6%	16.7 min	0.0%
BIL–PHX	Billings to Phoenix	31	93.5%	-15.3 min	0.0%
BIL–AZA	Billings to Phoenix	23	78.3%	3.2 min	0.0%
BIL–LAS	Billings to Las Vegas	9	66.7%	6.1 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	42.5%	33.0%	1,116
Late-arriving aircraft	12.4%	39.2%	325
National Aviation System	35.0%	21.9%	918
Extreme weather	10.2%	5.9%	267
Security	0.0%	0.1%	0

2,626 delay minutes on 52 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 March 2025?

90.9% of 372 scheduled domestic departures left less than 15 minutes late, and 85.5% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 88.8% of 276 departures left on time and 0.7% were cancelled, against 90.9% and 0.5% in March 2025.

Provenance

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