Billings Logan International in April 2024

89.7%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 2024, reporting carriers scheduled 321 domestic departures from Billings Logan International (BIL). 89.7% left less than 15 minutes late and 87.5% reached their destination on time; 0.6% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so BIL departures were 9.2 points above the national departure figure.

Flights arriving at BIL that month were on time 84.7% of the time (321 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 28% and national aviation system 20%.

On time 87.5%
Arrived 15+ minutes late 11.8%
Cancelled 0.6%
Diverted 0.0%

Every scheduled departure from BIL in April 2024, judged by arrival at the destination.

April 2024 against a year earlier, the airport's year and the nation

Measure	Apr 2024	Year earlier	BIL, 12 months to Jul 2026	All reported flights, Apr 2024
Departed on time	89.7%	—	87.4%	80.5%
Arrived on time	87.5%	—	84.7%	80.2%
Cancelled	0.6%	—	0.6%	0.7%
Average departure delay (late minutes only)	7.4 min	—	11.8 min	14.2 min
Scheduled departures a day	11	—	13	19,406
Scheduled departures	321	—	4,642	582,185

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	115	36%	88.7%	-7.6 min	0.0%
DL Delta Air Lines	60	19%	93.3%	-11.7 min	0.0%
MQ Envoy Air	60	19%	76.7%	12.0 min	3.3%
UA United Airlines	60	19%	88.3%	-5.6 min	0.0%
G4 Allegiant Air	26	8%	92.3%	-7.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	119	88.2%	-6.6 min	0.0%
BIL–SLC	Billings to Salt Lake City	86	90.7%	-10.1 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	57	77.2%	10.1 min	3.5%
BIL–MSP	Billings to Minneapolis	30	93.3%	-8.3 min	0.0%
BIL–AZA	Billings to Phoenix	17	100.0%	-9.0 min	0.0%
BIL–LAS	Billings to Las Vegas	9	77.8%	-3.7 min	0.0%
BIL–PHX	Billings to Phoenix	3	66.7%	47.3 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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2024	Minutes
Air carrier	28.4%	33.6%	717
Late-arriving aircraft	42.0%	41.0%	1,060
National Aviation System	19.6%	20.0%	494
Extreme weather	8.8%	5.1%	222
Security	1.1%	0.2%	28

2,521 delay minutes on 38 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 2024?

89.7% of 321 scheduled domestic departures left less than 15 minutes late, and 87.5% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2024; 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.