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Route · IDA → DEN · 2020–2025 BTS data

Idaho Falls to Denver

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IDA to DEN (Idaho Falls to Denver) ranks #1849 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.4%
On-time
+3.4 pts
vs US avg
99 min
Delay when late
6,836
Flights
#1849 of 4927
Corpus placement

Cancelled

1.0%

Best Month

Nov 2025 91%

Worst Month

Jul 2025 60%

Distance

458 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 136 29 0 1 UA,OO
Nov 2025 142 13 0 0 OO
Oct 2025 146 18 0 1 OO
Sep 2025 164 31 0 1 OO
Aug 2025 190 61 5 2 OO,G4
Jul 2025 192 77 4 3 OO,G4
Jun 2025 164 46 2 2 OO,G4
May 2025 156 42 2 3 OO,G4
Apr 2025 120 33 1 0 OO
Mar 2025 124 13 2 0 OO
Feb 2025 112 26 2 0 OO
Jan 2025 124 31 3 0 OO
Dec 2024 125 14 1 0 OO
Nov 2024 117 22 3 0 OO
Oct 2024 124 19 0 1 OO
Sep 2024 120 12 0 0 OO
Aug 2024 111 25 0 0 OO
Jul 2024 107 17 0 0 OO
Jun 2024 120 18 1 0 OO
May 2024 123 19 0 0 OO
Apr 2024 90 9 0 0 OO
Mar 2024 34 8 2 0 OO
Jan 2024 41 7 1 0 OO
Dec 2023 92 14 1 0 OO

IDA–DEN seasonal on-time pattern

Best: November (89.0%) · weakest: July (73.7%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.4%

Strongest calendar month

November

89.0% on-time · ~104 flights/mo

Busiest calendar month

July

~121 flights/mo avg

Weakest calendar month

July

73.7% on-time · ~121 flights/mo

Cancellation Rate

1.0%

30 of 2,974 flights

Diversion Rate

0.5%

14 of 2,974 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

IDA - Idaho Falls

Full on-time, delay-cause, and seasonal performance for Idaho Falls, ID.

IDA on-time profile

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

Compare the two airports

See IDA and DEN side by side on delays, cancellations, and reliability.

Compare IDA vs DEN

Origin-hub reliability standing

Mid-pack among IDA departures

From IDA, this corridor sits with 4 other 75–85% on-time routes out of 5 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 0 below 75%). Destination: Denver · fleet on-time rank #2190 of 4927.

What the Data Says About IDA to DEN

Bureau of Transportation Statistics records show Idaho Falls to Denver (IDA to DEN) running a 82.4% on-time rate over 6,836 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 98.8 minutes. The 458-mile corridor is served by 3 carriers, and over the last 24 months 1.0% of 2,974 flights were cancelled, 0.5% diverted.

The monthly split is wide on this route: Nov 2025 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 60% - a 31-point swing worth factoring into travel timing.

On the multi-year calendar, IDA–DEN peaks in November at 89.0% on-time while July carries the heaviest traffic (~121 flights per month) ; the softest month is July at 73.7%, a 15.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IDA to DEN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IDA to DEN ranks #1849 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IDA to DEN? ▼
Flights from Idaho Falls to Denver have a 82.4% on-time rate based on 6,836 flights. The average delay is 98.8 minutes. The best recent month was Nov 2025 with 91% on-time.
What is the cancellation rate for IDA to DEN? ▼
Over the last 24 months, 1.0% of flights on this route were cancelled (30 of 2,974 flights) and 0.5% were diverted.
How far is the flight from IDA to DEN? ▼
The flight distance from Idaho Falls (IDA) to Denver (DEN) is approximately 458 miles. This route is served by 3 carriers.
When is the best time to fly from IDA to DEN? ▼
The best recent month for on-time performance was Nov 2025 (91% on-time). The worst was Jul 2025 (60% on-time). Consider booking during months with historically better performance.

Airports on this route

IDA Airport

Idaho Falls
DEN Airport

Denver
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using IDA–DEN data

IDA–DEN runs 3.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IDA and DEN airport profiles: delay causes and top routes differ even on the same corridor. IDA airport
  • If your dates flex, November (89.0% on-time) beats July (73.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.