Billings Logan International in April 2026

89.6%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 April 2026, reporting carriers scheduled 335 domestic departures from Billings Logan International (BIL). 89.6% left less than 15 minutes late and 87.2% reached their destination on time; 0.0% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so BIL departures were 10.5 points above the national departure figure.

A year earlier, in April 2025, the airport had 359 departures with 85.8% leaving on time: a change of +3.8 points, with flights down 7%.

Flights arriving at BIL that month were on time 86.0% of the time (335 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 55%, late-arriving aircraft 17% and extreme weather 17%.

On time 87.2%
Arrived 15+ minutes late 12.8%
Cancelled 0.0%
Diverted 0.0%

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

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

Measure	Apr 2026	Apr 2025	BIL, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	89.6%	85.8%	87.4%	79.1%
Arrived on time	87.2%	78.6%	84.7%	78.9%
Cancelled	0.0%	0.8%	0.6%	0.9%
Average departure delay (late minutes only)	9.0 min	11.9 min	11.8 min	14.5 min
Scheduled departures a day	11	12	13	19,931
Scheduled departures	335	359	4,642	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	127	38%	89.0%	0.4 min	0.0%
MQ Envoy Air	67	20%	73.1%	1.6 min	0.0%
DL Delta Air Lines	60	18%	88.3%	-4.4 min	0.0%
UA United Airlines	60	18%	98.3%	-21.6 min	0.0%
G4 Allegiant Air	21	6%	85.7%	1.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	127	93.7%	-14.1 min	0.0%
BIL–SLC	Billings to Salt Lake City	90	90.0%	2.1 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	60	70.0%	4.1 min	0.0%
BIL–MSP	Billings to Minneapolis	30	83.3%	3.1 min	0.0%
BIL–AZA	Billings to Phoenix	13	84.6%	3.7 min	0.0%
BIL–LAS	Billings to Las Vegas	8	87.5%	-1.9 min	0.0%
BIL–PHX	Billings to Phoenix	7	100.0%	-20.0 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	54.7%	33.5%	1,611
Late-arriving aircraft	17.2%	40.4%	506
National Aviation System	11.6%	21.0%	342
Extreme weather	16.5%	5.0%	486
Security	0.0%	0.1%	0

2,945 delay minutes on 43 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 April 2026?

89.6% of 335 scheduled domestic departures left less than 15 minutes late, and 87.2% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 85.8% of 359 departures left on time and 0.8% were cancelled, against 89.6% and 0.0% in April 2026.

Provenance

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