Billings Logan International in December 2023

90.6%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 December 2023, reporting carriers scheduled 277 domestic departures from Billings Logan International (BIL). 90.6% left less than 15 minutes late and 88.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so BIL departures were 7.5 points above the national departure figure.

Flights arriving at BIL that month were on time 90.3% of the time (278 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 64%, national aviation system 18% and late-arriving aircraft 11%.

On time 88.8%
Arrived 15+ minutes late 11.2%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from BIL in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	BIL, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	90.6%	—	87.4%	83.1%
Arrived on time	88.8%	—	84.7%	83.8%
Cancelled	0.0%	—	0.6%	0.4%
Average departure delay (late minutes only)	7.9 min	—	11.8 min	11.6 min
Scheduled departures a day	9	—	13	19,013
Scheduled departures	277	—	4,642	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
MQ Envoy Air	66	24%	84.8%	0.1 min	0.0%
DL Delta Air Lines	62	22%	91.9%	-4.8 min	0.0%
UA United Airlines	62	22%	85.5%	6.6 min	0.0%
OO SkyWest Airlines	57	21%	94.7%	-7.2 min	0.0%
G4 Allegiant Air	30	11%	86.7%	-14.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–SLC	Billings to Salt Lake City	83	94.0%	-8.3 min	0.0%
BIL–DEN	Billings to Denver	62	85.5%	6.6 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	42	88.1%	-4.2 min	0.0%
BIL–MSP	Billings to Minneapolis	31	90.3%	2.4 min	0.0%
BIL–PHX	Billings to Phoenix	29	82.8%	2.9 min	0.0%
BIL–LAS	Billings to Las Vegas	17	76.5%	-5.9 min	0.0%
BIL–AZA	Billings to Phoenix	13	100.0%	-24.6 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	64.2%	37.1%	1,441
Late-arriving aircraft	11.1%	38.8%	249
National Aviation System	18.2%	17.6%	408
Extreme weather	6.2%	6.2%	140
Security	0.3%	0.3%	6

2,244 delay minutes on 31 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 December 2023?

90.6% of 277 scheduled domestic departures left less than 15 minutes late, and 88.8% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 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 December 2023; 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.