Airport reliability

Idaho Falls (IDA) on-time performance

How reliably flights leave Idaho Falls, ID (IDA) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Idaho Falls, ID4,812 departures in 12 months

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Departures on time: 80.4%
Cancelled: 0.6%
60+ minutes late: 8.0%
Scheduled departures: 4,812

What this means

IDA departures beat the U.S. average.

80.4% of the 4,812 scheduled departures from Idaho Falls (IDA) arrived at their destination on time, 4.8 points higher than the U.S. average of 75.6%.
0.6% of departures were cancelled (U.S. average 1.9%), and 8.0% arrived an hour or more late.
Flights arriving at IDA were on time 81.2% of the time.
Among airlines with at least 300 departures, Delta Air Lines was the most punctual from IDA (88.6%) and Allegiant Air the least (69.7%).
Over the last 3 years, November was the most reliable month for departures from IDA (85.7% on time) and July the least reliable (75.6%).
Flights scheduled to depart 11 am to noon were the most punctual (94.8% on time); flights scheduled to depart noon to 1 pm were the least (59.9%).

Airlines at IDA

Ranked by on-time arrival

Departures from IDA, September 2025 to August 2026. On time means arrived at the destination within 15 minutes of schedule.
Airline	On time	Cancelled	60+ min late	Avg delay when late	Departures
Delta Air Lines	88.6%	1.3%	4.4%	175 min	317
SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska	81.5%	0.6%	7.5%	92 min	3,771
United Airlines	74.0%	0.0%	8.9%	110 min	246
Allegiant Air	69.7%	0.4%	13.8%	151 min	478

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On-time rate by departure hour

<6a 90.5%

6a 88.8%

7a 88.2%

8a Insufficient sample

9a 92.3%

10a 88.2%

11a 94.8%

12p 59.9%

1p 77.5%

2p 75.2%

3p 86.2%

4p 63.0%

5p 68.6%

6p 86.6%

7p 88.7%

8p Insufficient sample

9p Insufficient sample

10p 57.1%

Share of scheduled flights on time IDA average 80.4%

Departures from IDA by scheduled local departure hour, September 2025 to August 2026. Scale starts at zero.

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Period	On time	Flights
Departing before 6 am	90.5%	231
Departing 6 am to 7 am	88.8%	633
Departing 7 am to 8 am	88.2%	533
Departing 8 am to 9 am	Insufficient sample	17
Departing 9 am to 10 am	92.3%	65
Departing 10 am to 11 am	88.2%	363
Departing 11 am to noon	94.8%	134
Departing noon to 1 pm	59.9%	192
Departing 1 pm to 2 pm	77.5%	592
Departing 2 pm to 3 pm	75.2%	564
Departing 3 pm to 4 pm	86.2%	232
Departing 4 pm to 5 pm	63.0%	422
Departing 5 pm to 6 pm	68.6%	306
Departing 6 pm to 7 pm	86.6%	268
Departing 7 pm to 8 pm	88.7%	133
Departing 8 pm to 9 pm	Insufficient sample	10
Departing 9 pm to 10 pm	Insufficient sample	33
Departing 10 pm to 11 pm	57.1%	84

Best and worst months at IDA

Jan 79.9%

Feb 82.0%

Mar 82.0%

Apr 84.2%

May 82.8%

Jun 79.8%

Jul 75.6%

Aug 77.3%

Sep 84.8%

Oct 81.7%

Nov 85.7%

Dec 80.6%

Share of scheduled flights on time 12-month average 80.4%

Departures from IDA by calendar month, September 2023 to August 2026 pooled. Scale starts at zero.

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Period	On time	Flights
January	79.9%	871
February	82.0%	744
March	82.0%	881
April	84.2%	913
May	82.8%	1,110
June	79.8%	1,220
July	75.6%	1,265
August	77.3%	1,302
September	84.8%	957
October	81.7%	971
November	85.7%	968
December	80.6%	1,013

Month by month, last 12 months

Sep 81.1%

Oct 78.6%

Nov 86.8%

Dec 78.8%

Jan 82.9%

Feb 86.5%

Mar 80.9%

Apr 85.3%

May 82.7%

Jun 78.2%

Jul 75.3%

Aug 74.6%

Share of scheduled flights on time U.S. average 75.6%

Departures from IDA, September 2025 to August 2026. Scale starts at zero.

Show as table

Period	On time	Flights
Sep 2025	81.1%	387
Oct 2025	78.6%	378
Nov 2025	86.8%	393
Dec 2025	78.8%	400
Jan 2026	82.9%	327
Feb 2026	86.5%	275
Mar 2026	80.9%	341
Apr 2026	85.3%	340
May 2026	82.7%	417
Jun 2026	78.2%	501
Jul 2026	75.3%	514
Aug 2026	74.6%	539

Busiest routes from IDA

Nonstop routes from IDA by scheduled flights, September 2025 to August 2026.
To	On time	Cancelled	Airlines	Flights
Denver (DEN)	80.2%	0.4%	2	1,664
Salt Lake City (SLC)	91.5%	0.4%	2	1,195
Dallas/Fort Worth (DFW)	73.9%	1.6%	1	556
Seattle (SEA)	82.9%	0.2%	1	428
Phoenix (AZA)	74.8%	0.5%	1	218
Phoenix (PHX)	87.5%	0.0%	1	200
Chicago (ORD)	54.2%	3.4%	1	179
Portland (PDX)	62.9%	0.0%	2	151
Las Vegas (LAS)	64.9%	0.9%	1	114
Santa Ana (SNA)	66.7%	0.0%	1	105

Airliner parked at a terminal gate — Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source: U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period: September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through: August 2026
Processed: 2026-11-03
Scope: Scheduled nonstop domestic departures from Idaho Falls, ID (IDA) by airlines that report to the DOT.
Method: Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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