Idaho Falls Regional in July 2025

77.2%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 July 2025, reporting carriers scheduled 429 domestic departures from Idaho Falls Regional (IDA). 77.2% left less than 15 minutes late and 71.8% reached their destination on time; 1.2% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so IDA departures were 7.5 points above the national departure figure.

A year earlier, in July 2024, the airport had 322 departures with 82.0% leaving on time: a change of −4.8 points, with flights up 33%.

Flights arriving at IDA that month were on time 74.8% of the time (429 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, national aviation system 30% and extreme weather 17%.

On time 71.8%
Arrived 15+ minutes late 26.3%
Cancelled 1.2%
Diverted 0.7%

Every scheduled departure from IDA in July 2025, judged by arrival at the destination.

July 2025 against a year earlier, the airport's year and the nation

Measure	Jul 2025	Jul 2024	IDA, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	77.2%	82.0%	82.1%	69.7%
Arrived on time	71.8%	81.1%	80.5%	69.0%
Cancelled	1.2%	0.6%	0.7%	2.5%
Average departure delay (late minutes only)	21.5 min	14.2 min	21.1 min	24.3 min
Scheduled departures a day	14	11	13	21,048
Scheduled departures	429	322	4,724	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	333	78%	70.9%	15.5 min	1.2%
G4 Allegiant Air	65	15%	70.8%	7.2 min	1.5%
DL Delta Air Lines	31	7%	83.9%	14.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	192	56.3%	28.1 min	2.1%
IDA–SLC	Idaho Falls to Salt Lake City	119	88.2%	3.0 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	62	82.3%	4.5 min	1.6%
IDA–AZA	Idaho Falls to Phoenix	23	87.0%	-1.5 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	9	55.6%	16.0 min	0.0%
IDA–OAK	Idaho Falls to Oakland	8	87.5%	-2.0 min	0.0%
IDA–PDX	Idaho Falls to Portland	8	87.5%	-2.2 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	8	62.5%	6.6 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	37.7%	31.1%	3,461
Late-arriving aircraft	15.8%	40.8%	1,447
National Aviation System	29.9%	20.7%	2,739
Extreme weather	16.6%	7.3%	1,525
Security	0.0%	0.1%	0

9,172 delay minutes on 113 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 July 2025?

77.2% of 429 scheduled domestic departures left less than 15 minutes late, and 71.8% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 82.0% of 322 departures left on time and 0.6% were cancelled, against 77.2% and 1.2% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.