Billings Logan International in December 2024

88.7%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 December 2024, reporting carriers scheduled 373 domestic departures from Billings Logan International (BIL). 88.7% left less than 15 minutes late and 88.2% reached their destination on time; 0.0% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so BIL departures were 10.9 points above the national departure figure.

A year earlier, in December 2023, the airport had 277 departures with 90.6% leaving on time: a change of −1.9 points, with flights up 35%.

Flights arriving at BIL that month were on time 83.6% of the time (372 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 64%, late-arriving aircraft 20% and national aviation system 11%.

On time 88.2%
Arrived 15+ minutes late 11.5%
Cancelled 0.0%
Diverted 0.3%

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

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

Measure	Dec 2024	Dec 2023	BIL, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	88.7%	90.6%	87.4%	77.8%
Arrived on time	88.2%	88.8%	84.7%	78.1%
Cancelled	0.0%	0.0%	0.6%	0.7%
Average departure delay (late minutes only)	10.2 min	7.9 min	11.8 min	16.6 min
Scheduled departures a day	12	9	13	19,686
Scheduled departures	373	277	4,642	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	118	32%	92.4%	-2.1 min	0.0%
MQ Envoy Air	91	24%	82.4%	-6.3 min	0.0%
DL Delta Air Lines	62	17%	95.2%	-5.5 min	0.0%
UA United Airlines	62	17%	91.9%	-10.2 min	0.0%
G4 Allegiant Air	40	11%	72.5%	7.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
BIL–DEN	Billings to Denver	123	95.1%	-8.2 min	0.0%
BIL–SLC	Billings to Salt Lake City	88	87.5%	2.0 min	0.0%
BIL–DFW	Billings to Dallas/Fort Worth	61	75.4%	3.2 min	0.0%
BIL–MSP	Billings to Minneapolis	31	100.0%	-12.5 min	0.0%
BIL–PHX	Billings to Phoenix	30	96.7%	-25.2 min	0.0%
BIL–LAS	Billings to Las Vegas	21	76.2%	2.5 min	0.0%
BIL–AZA	Billings to Phoenix	19	68.4%	13.4 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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	64.3%	34.3%	2,248
Late-arriving aircraft	19.8%	40.2%	693
National Aviation System	10.9%	17.8%	380
Extreme weather	5.0%	7.5%	175
Security	0.0%	0.2%	0

3,496 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 December 2024?

88.7% of 373 scheduled domestic departures left less than 15 minutes late, and 88.2% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 90.6% of 277 departures left on time and 0.0% were cancelled, against 88.7% and 0.0% in December 2024.

Provenance

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