Idaho Falls Regional in July 2026

76.5%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 2026, reporting carriers scheduled 514 domestic departures from Idaho Falls Regional (IDA). 76.5% left less than 15 minutes late and 75.3% reached their destination on time; 0.6% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so IDA departures were 7.7 points above the national departure figure.

A year earlier, in July 2025, the airport had 429 departures with 77.2% leaving on time: a change of −0.7 points, with flights up 20%.

Flights arriving at IDA that month were on time 79.0% of the time (514 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 31%, extreme weather 29% and national aviation system 23%.

On time 75.3%
Arrived 15+ minutes late 23.2%
Cancelled 0.6%
Diverted 1.0%

Every scheduled departure from IDA in July 2026, judged by arrival at the destination.

July 2026 against a year earlier, the airport's year and the nation

Measure	Jul 2026	Jul 2025	IDA, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	76.5%	77.2%	82.1%	68.8%
Arrived on time	75.3%	71.8%	80.5%	69.4%
Cancelled	0.6%	1.2%	0.7%	2.6%
Average departure delay (late minutes only)	22.0 min	21.5 min	21.1 min	24.1 min
Scheduled departures a day	17	14	13	21,066
Scheduled departures	514	429	4,724	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	404	79%	76.0%	13.2 min	0.5%
G4 Allegiant Air	48	9%	66.7%	11.6 min	0.0%
DL Delta Air Lines	31	6%	93.5%	-4.7 min	3.2%
UA United Airlines	31	6%	61.3%	50.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	153	70.6%	17.1 min	0.0%
IDA–SLC	Idaho Falls to Salt Lake City	123	89.4%	0.8 min	0.8%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	62	71.0%	33.8 min	0.0%
IDA–SEA	Idaho Falls to Seattle	62	87.1%	-2.5 min	0.0%
IDA–PDX	Idaho Falls to Portland	40	57.5%	17.6 min	0.0%
IDA–ORD	Idaho Falls to Chicago	35	62.9%	45.2 min	5.7%
IDA–AZA	Idaho Falls to Phoenix	21	85.7%	4.1 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	9	44.4%	14.2 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	9	44.4%	19.4 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	17.7%	31.7%	1,894
Late-arriving aircraft	30.9%	41.8%	3,296
National Aviation System	22.7%	19.9%	2,428
Extreme weather	28.7%	6.5%	3,059
Security	0.0%	0.1%	0

10,677 delay minutes on 119 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 2026?

76.5% of 514 scheduled domestic departures left less than 15 minutes late, and 75.3% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 77.2% of 429 departures left on time and 1.2% were cancelled, against 76.5% and 0.6% in July 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; 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.