Billings Logan International in July 2025

79.4%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 July 2025, reporting carriers scheduled 486 domestic departures from Billings Logan International (BIL). 79.4% left less than 15 minutes late and 76.1% reached their destination on time; 0.8% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so BIL departures were 9.7 points above the national departure figure.

A year earlier, in July 2024, the airport had 420 departures with 79.0% leaving on time: a change of +0.4 points, with flights up 16%.

Flights arriving at BIL that month were on time 67.7% of the time (486 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 47%, national aviation system 22% and late-arriving aircraft 19%.

On time 76.1%
Arrived 15+ minutes late 21.8%
Cancelled 0.8%
Diverted 1.2%

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

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

Measure	Jul 2025	Jul 2024	BIL, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	79.4%	79.0%	87.4%	69.7%
Arrived on time	76.1%	78.8%	84.7%	69.0%
Cancelled	0.8%	2.4%	0.6%	2.5%
Average departure delay (late minutes only)	25.6 min	12.1 min	11.8 min	24.3 min
Scheduled departures a day	16	14	13	21,048
Scheduled departures	486	420	4,642	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	213	44%	76.1%	11.2 min	1.4%
MQ Envoy Air	124	26%	76.6%	25.9 min	0.0%
DL Delta Air Lines	62	13%	87.1%	7.4 min	1.6%
UA United Airlines	62	13%	66.1%	20.4 min	0.0%
G4 Allegiant Air	25	5%	72.0%	69.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	183	67.8%	21.1 min	1.6%
BIL–ORD	Billings to Chicago	93	68.8%	37.3 min	0.0%
BIL–SLC	Billings to Salt Lake City	92	91.3%	-2.1 min	1.1%
BIL–DFW	Billings to Dallas/Fort Worth	62	83.9%	2.0 min	0.0%
BIL–MSP	Billings to Minneapolis	31	90.3%	3.3 min	0.0%
BIL–AZA	Billings to Phoenix	16	81.3%	-3.9 min	0.0%
BIL–LAS	Billings to Las Vegas	9	55.6%	198.8 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	47.4%	31.1%	6,070
Late-arriving aircraft	19.4%	40.8%	2,487
National Aviation System	21.8%	20.7%	2,786
Extreme weather	11.4%	7.3%	1,463
Security	0.0%	0.1%	0

12,806 delay minutes on 106 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 July 2025?

79.4% of 486 scheduled domestic departures left less than 15 minutes late, and 76.1% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 79.0% of 420 departures left on time and 2.4% were cancelled, against 79.4% and 0.8% in July 2025.

Provenance

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