Idaho Falls Regional in October 2025

82.5%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 October 2025, reporting carriers scheduled 378 domestic departures from Idaho Falls Regional (IDA). 82.5% left less than 15 minutes late and 78.6% reached their destination on time; 0.5% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so IDA departures were 2.5 points above the national departure figure.

A year earlier, in October 2024, the airport had 307 departures with 84.0% leaving on time: a change of −1.5 points, with flights up 23%.

Flights arriving at IDA that month were on time 78.6% of the time (379 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 74%, late-arriving aircraft 15% and national aviation system 7%.

On time 78.6%
Arrived 15+ minutes late 20.6%
Cancelled 0.5%
Diverted 0.3%

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

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

Measure	Oct 2025	Oct 2024	IDA, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	82.5%	84.0%	82.1%	80.0%
Arrived on time	78.6%	85.0%	80.5%	79.1%
Cancelled	0.5%	0.0%	0.7%	0.5%
Average departure delay (late minutes only)	19.9 min	16.6 min	21.1 min	13.9 min
Scheduled departures a day	13	10	13	20,195
Scheduled departures	378	307	4,724	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	315	83%	79.7%	13.2 min	0.3%
G4 Allegiant Air	36	10%	75.0%	18.6 min	2.8%
DL Delta Air Lines	27	7%	70.4%	9.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	146	87.0%	0.5 min	0.0%
IDA–SLC	Idaho Falls to Salt Lake City	92	89.1%	-0.9 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	62	61.3%	32.2 min	0.0%
IDA–ORD	Idaho Falls to Chicago	31	38.7%	80.1 min	3.2%
IDA–AZA	Idaho Falls to Phoenix	18	77.8%	12.9 min	5.6%
IDA–SEA	Idaho Falls to Seattle	11	100.0%	0.6 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	9	77.8%	15.9 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	9	66.7%	32.1 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), October 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	74.3%	34.0%	5,433
Late-arriving aircraft	14.8%	39.7%	1,085
National Aviation System	7.3%	22.9%	537
Extreme weather	3.5%	3.3%	258
Security	0.0%	0.1%	0

7,313 delay minutes on 78 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 October 2025?

82.5% of 378 scheduled domestic departures left less than 15 minutes late, and 78.6% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 84.0% of 307 departures left on time and 0.0% were cancelled, against 82.5% and 0.5% in October 2025.

Provenance

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