Idaho Falls Regional in April 2026

86.2%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 April 2026, reporting carriers scheduled 340 domestic departures from Idaho Falls Regional (IDA). 86.2% left less than 15 minutes late and 85.3% reached their destination on time; 0.3% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so IDA departures were 7.1 points above the national departure figure.

A year earlier, in April 2025, the airport had 307 departures with 83.7% leaving on time: a change of +2.5 points, with flights up 11%.

Flights arriving at IDA that month were on time 83.5% of the time (339 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 71%, late-arriving aircraft 24% and national aviation system 3%.

On time 85.3%
Arrived 15+ minutes late 14.4%
Cancelled 0.3%
Diverted 0.0%

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

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

Measure	Apr 2026	Apr 2025	IDA, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	86.2%	83.7%	82.1%	79.1%
Arrived on time	85.3%	78.5%	80.5%	78.9%
Cancelled	0.3%	0.7%	0.7%	0.9%
Average departure delay (late minutes only)	17.5 min	21.4 min	21.1 min	14.5 min
Scheduled departures a day	11	10	13	19,931
Scheduled departures	340	307	4,724	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	272	80%	86.8%	-3.9 min	0.4%
G4 Allegiant Air	29	9%	69.0%	91.4 min	0.0%
UA United Airlines	21	6%	81.0%	-3.0 min	0.0%
DL Delta Air Lines	18	5%	94.4%	4.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	119	86.6%	-5.2 min	0.0%
IDA–SLC	Idaho Falls to Salt Lake City	90	95.6%	-3.8 min	0.0%
IDA–SEA	Idaho Falls to Seattle	42	83.3%	-4.5 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	30	70.0%	3.1 min	3.3%
IDA–PHX	Idaho Falls to Phoenix	30	83.3%	1.1 min	0.0%
IDA–AZA	Idaho Falls to Phoenix	13	69.2%	17.2 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	8	62.5%	157.9 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	8	75.0%	145.5 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	70.5%	33.5%	3,824
Late-arriving aircraft	24.4%	40.4%	1,325
National Aviation System	2.9%	21.0%	155
Extreme weather	2.3%	5.0%	123
Security	0.0%	0.1%	0

5,427 delay minutes on 49 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 2026?

86.2% of 340 scheduled domestic departures left less than 15 minutes late, and 85.3% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 83.7% of 307 departures left on time and 0.7% were cancelled, against 86.2% and 0.3% in April 2026.

Provenance

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