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Route · DEN → CMH · 2020–2025 BTS data

Denver to Columbus

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to CMH (Denver to Columbus) ranks #1257 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

74.5%
On-time
-4.5 pts
vs US avg
60 min
Delay when late
9,415
Flights
#1257 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Oct 2024 86%

Worst Month

Jun 2025 55%

Distance

1,154 mi

Carriers

20

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 141 38 0 0 WN,F9,UA
Nov 2025 142 21 1 1 UA,F9,WN
Oct 2025 166 27 1 0 UA,WN,F9
Sep 2025 146 41 0 0 UA,WN,F9
Aug 2025 148 49 2 0 WN,F9,UA
Jul 2025 162 70 1 0 UA,WN,F9
Jun 2025 155 69 0 0 UA,WN,F9
May 2025 148 54 0 1 UA,WN,F9
Apr 2025 140 34 0 0 UA,WN
Mar 2025 137 27 0 0 UA,WN
Feb 2025 120 31 0 0 UA,WN
Jan 2025 130 41 0 0 UA,WN,F9
Dec 2024 141 24 0 0 F9,UA,WN
Nov 2024 142 26 2 1 UA,WN,F9
Oct 2024 148 21 0 0 UA,WN,F9
Sep 2024 144 25 0 0 WN,UA,F9
Aug 2024 154 40 1 0 F9,WN,UA
Jul 2024 164 48 0 0 F9,UA,WN
Jun 2024 158 47 0 0 F9,UA,WN
May 2024 173 46 0 0 F9,UA,WN
Apr 2024 163 30 0 0 F9,UA,WN
Mar 2024 152 43 2 1 UA,WN
Feb 2024 137 41 2 0 UA,WN
Jan 2024 150 51 3 0 F9,WN,UA

DEN–CMH seasonal on-time pattern

Best: November (82.2%) · weakest: June (64.1%)

60%65%70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 74.5%

Strongest calendar month

November

82.2% on-time · ~135 flights/mo

Busiest calendar month

August

~147 flights/mo avg

Weakest calendar month

June

64.1% on-time · ~132 flights/mo

Cancellation Rate

0.4%

15 of 3,561 flights

Diversion Rate

0.1%

4 of 3,561 flights

Explore origin & destination

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

DEN - Denver

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

DEN on-time profile

CMH - Columbus

Full on-time, delay-cause, and seasonal performance for Columbus, OH.

CMH on-time profile

Compare the two airports

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

Compare DEN vs CMH

Origin-hub reliability standing

Softer reliability from DEN

Among 168 routes leaving DEN, only 27 (including this one) clear below 75% on-time, while 8 stay ≥85% and 133 sit mid-band. Travelers comparing DEN options should weigh this 74.5% print against those peers · fleet on-time rank #4538 of 4927.

What the Data Says About DEN to CMH

On-time performance on the DEN to CMH pairing (Denver to Columbus) trails a chunk of the network: 74.5% of 9,415 tracked flights arrived on schedule, with a 60.1-minute average delay on the ones that ran late. The route spans about 1,154 miles across 20 carriers. Cancellations over the trailing 24 months hit 0.4% (15 of 3,561 flights), with 0.1% diverted.

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 86% on-time, while Jun 2025 came in at just 55% - a 30-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–CMH peaks in November at 82.2% on-time while August carries the heaviest traffic (~147 flights per month) ; the softest month is June at 64.1%, a 18.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to CMH rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to CMH ranks #1257 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 DEN to CMH? ▼
Flights from Denver to Columbus have a 74.5% on-time rate based on 9,415 flights. The average delay is 60.1 minutes. The best recent month was Oct 2024 with 86% on-time.
What is the cancellation rate for DEN to CMH? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (15 of 3,561 flights) and 0.1% were diverted.
How far is the flight from DEN to CMH? ▼
The flight distance from Denver (DEN) to Columbus (CMH) is approximately 1,154 miles. This route is served by 20 carriers.
When is the best time to fly from DEN to CMH? ▼
The best recent month for on-time performance was Oct 2024 (86% on-time). The worst was Jun 2025 (55% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
CMH Airport

Columbus
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 DEN–CMH data

DEN–CMH sits 4.5 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.

  • Compare DEN and CMH airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, November (82.2% on-time) beats June (64.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 74.5% 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.