Idaho Falls Regional in January 2026

84.4%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 January 2026, reporting carriers scheduled 327 domestic departures from Idaho Falls Regional (IDA). 84.4% left less than 15 minutes late and 82.9% reached their destination on time; 0.3% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so IDA departures were 8.8 points above the national departure figure.

A year earlier, in January 2025, the airport had 316 departures with 75.0% leaving on time: a change of +9.4 points, with flights up 3%.

Flights arriving at IDA that month were on time 81.2% of the time (325 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 73%, late-arriving aircraft 13% and extreme weather 8%.

On time 82.9%
Arrived 15+ minutes late 16.8%
Cancelled 0.3%
Diverted 0.0%

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

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

Measure	Jan 2026	Jan 2025	IDA, 12 months to Jul 2026	All reported flights, Jan 2026
Departed on time	84.4%	75.0%	82.1%	75.6%
Arrived on time	82.9%	75.9%	80.5%	75.3%
Cancelled	0.3%	1.9%	0.7%	4.7%
Average departure delay (late minutes only)	26.2 min	30.3 min	21.1 min	16.7 min
Scheduled departures a day	11	11	13	18,133
Scheduled departures	327	316	4,724	544,003

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	225	69%	83.1%	9.9 min	0.4%
G4 Allegiant Air	40	12%	75.0%	47.1 min	0.0%
DL Delta Air Lines	31	9%	90.3%	-3.5 min	0.0%
UA United Airlines	31	9%	83.9%	-16.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IDA–DEN	Idaho Falls to Denver	130	87.7%	-8.7 min	0.0%
IDA–SLC	Idaho Falls to Salt Lake City	83	88.0%	-4.9 min	0.0%
IDA–DFW	Idaho Falls to Dallas/Fort Worth	31	64.5%	45.2 min	3.2%
IDA–PHX	Idaho Falls to Phoenix	31	77.4%	57.5 min	0.0%
IDA–AZA	Idaho Falls to Phoenix	20	70.0%	56.0 min	0.0%
IDA–SEA	Idaho Falls to Seattle	12	83.3%	-1.2 min	0.0%
IDA–LAS	Idaho Falls to Las Vegas	9	77.8%	78.8 min	0.0%
IDA–SNA	Idaho Falls to Santa Ana	9	77.8%	8.0 min	0.0%
IDA–PDX	Idaho Falls to Portland	2	100.0%	-9.0 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), January 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2026	Minutes
Air carrier	72.9%	37.3%	5,982
Late-arriving aircraft	12.8%	35.0%	1,052
National Aviation System	6.8%	18.0%	557
Extreme weather	7.5%	9.6%	618
Security	0.0%	0.1%	0

8,209 delay minutes on 55 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 January 2026?

84.4% of 327 scheduled domestic departures left less than 15 minutes late, and 82.9% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 75.0% of 316 departures left on time and 1.9% were cancelled, against 84.4% and 0.3% in January 2026.

Provenance

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