Idaho Falls Regional in December 2024

83.2%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 328 domestic departures from Idaho Falls Regional (IDA). 83.2% left less than 15 minutes late and 81.1% reached their destination on time; 0.6% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so IDA departures were 5.4 points above the national departure figure.

A year earlier, in December 2023, the airport had 285 departures with 82.5% leaving on time: a change of +0.7 points, with flights up 15%.

Flights arriving at IDA that month were on time 80.6% of the time (330 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 37%, extreme weather 29% and late-arriving aircraft 29%.

On time 81.1%
Arrived 15+ minutes late 18.0%
Cancelled 0.6%
Diverted 0.3%

Every scheduled departure from IDA 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	IDA, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	83.2%	82.5%	82.1%	77.8%
Arrived on time	81.1%	82.5%	80.5%	78.1%
Cancelled	0.6%	0.7%	0.7%	0.7%
Average departure delay (late minutes only)	38.4 min	20.8 min	21.1 min	16.6 min
Scheduled departures a day	11	10	13	19,686
Scheduled departures	328	285	4,724	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	243	74%	86.0%	-0.5 min	0.8%
G4 Allegiant Air	54	16%	63.0%	151.3 min	0.0%
DL Delta Air Lines	31	9%	74.2%	35.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	125	88.0%	-2.9 min	0.8%
IDA–SLC	Idaho Falls to Salt Lake City	88	85.2%	14.3 min	0.0%
IDA–PHX	Idaho Falls to Phoenix	31	87.1%	-8.6 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	30	66.7%	12.5 min	3.3%
IDA–AZA	Idaho Falls to Phoenix	23	65.2%	98.0 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	13	53.8%	319.7 min	0.0%
IDA–PDX	Idaho Falls to Portland	9	55.6%	153.4 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	9	77.8%	42.0 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	37.1%	34.3%	4,654
Late-arriving aircraft	28.7%	40.2%	3,608
National Aviation System	4.8%	17.8%	602
Extreme weather	29.4%	7.5%	3,692
Security	0.0%	0.2%	0

12,556 delay minutes on 59 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 IDA on time in December 2024?

83.2% of 328 scheduled domestic departures left less than 15 minutes late, and 81.1% 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, 82.5% of 285 departures left on time and 0.7% were cancelled, against 83.2% and 0.6% 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 IDA · methodology · corrections.