Idaho Falls Regional in April 2025

83.7%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 April 2025, reporting carriers scheduled 307 domestic departures from Idaho Falls Regional (IDA). 83.7% left less than 15 minutes late and 78.5% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so IDA departures were 3.1 points above the national departure figure.

A year earlier, in April 2024, the airport had 266 departures with 89.8% leaving on time: a change of −6.1 points, with flights up 15%.

Flights arriving at IDA that month were on time 80.5% of the time (307 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 45%, extreme weather 26% and national aviation system 17%.

On time 78.5%
Arrived 15+ minutes late 20.8%
Cancelled 0.7%
Diverted 0.0%

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

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

Measure	Apr 2025	Apr 2024	IDA, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	83.7%	89.8%	82.1%	80.6%
Arrived on time	78.5%	89.5%	80.5%	79.5%
Cancelled	0.7%	0.0%	0.7%	0.8%
Average departure delay (late minutes only)	21.4 min	9.4 min	21.1 min	14.1 min
Scheduled departures a day	10	9	13	19,465
Scheduled departures	307	266	4,724	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	240	78%	78.3%	9.6 min	0.8%
G4 Allegiant Air	37	12%	78.4%	9.8 min	0.0%
DL Delta Air Lines	30	10%	80.0%	51.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	120	71.7%	12.5 min	0.8%
IDA–SLC	Idaho Falls to Salt Lake City	90	85.6%	26.9 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	30	70.0%	12.8 min	3.3%
IDA–PHX	Idaho Falls to Phoenix	30	93.3%	-15.3 min	0.0%
IDA–AZA	Idaho Falls to Phoenix	13	69.2%	11.1 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	8	87.5%	-5.2 min	0.0%
IDA–PDX	Idaho Falls to Portland	8	62.5%	34.3 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	8	100.0%	-1.9 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	44.9%	32.7%	3,076
Late-arriving aircraft	11.4%	39.4%	782
National Aviation System	17.3%	22.2%	1,185
Extreme weather	26.4%	5.5%	1,805
Security	0.0%	0.2%	0

6,848 delay minutes on 64 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 April 2025?

83.7% of 307 scheduled domestic departures left less than 15 minutes late, and 78.5% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 89.8% of 266 departures left on time and 0.0% were cancelled, against 83.7% and 0.7% in April 2025.

Provenance

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