Billings Logan International in June 2025

81.6%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 June 2025, reporting carriers scheduled 467 domestic departures from Billings Logan International (BIL). 81.6% left less than 15 minutes late and 76.9% reached their destination on time; 0.6% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so BIL departures were 10.2 points above the national departure figure.

A year earlier, in June 2024, the airport had 395 departures with 82.5% leaving on time: a change of −0.9 points, with flights up 18%.

Flights arriving at BIL that month were on time 72.4% of the time (468 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 43%, air carrier 30% and late-arriving aircraft 22%.

On time 76.9%
Arrived 15+ minutes late 21.8%
Cancelled 0.6%
Diverted 0.6%

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

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

Measure	Jun 2025	Jun 2024	BIL, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	81.6%	82.5%	87.4%	71.4%
Arrived on time	76.9%	80.0%	84.7%	70.3%
Cancelled	0.6%	1.0%	0.6%	1.6%
Average departure delay (late minutes only)	18.3 min	13.6 min	11.8 min	22.1 min
Scheduled departures a day	16	13	13	20,386
Scheduled departures	467	395	4,642	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	210	45%	75.7%	13.5 min	1.0%
MQ Envoy Air	111	24%	76.6%	4.0 min	0.0%
DL Delta Air Lines	60	13%	88.3%	11.0 min	1.7%
UA United Airlines	60	13%	66.7%	22.1 min	0.0%
G4 Allegiant Air	26	6%	84.6%	-8.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	180	63.9%	27.7 min	1.1%
BIL–SLC	Billings to Salt Lake City	90	96.7%	-5.8 min	0.0%
BIL–ORD	Billings to Chicago	81	76.5%	5.4 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	60	80.0%	-0.1 min	0.0%
BIL–MSP	Billings to Minneapolis	30	83.3%	13.9 min	3.3%
BIL–AZA	Billings to Phoenix	13	92.3%	-12.2 min	0.0%
BIL–LAS	Billings to Las Vegas	13	76.9%	-5.0 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	29.7%	31.6%	2,763
Late-arriving aircraft	21.9%	40.6%	2,041
National Aviation System	42.8%	20.9%	3,986
Extreme weather	5.6%	6.9%	517
Security	0.0%	0.2%	0

9,307 delay minutes on 102 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 June 2025?

81.6% of 467 scheduled domestic departures left less than 15 minutes late, and 76.9% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 82.5% of 395 departures left on time and 1.0% were cancelled, against 81.6% and 0.6% in June 2025.

Provenance

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