Route · IAD → CMH · 2020–2025 BTS data
Washington to Columbus
The IAD–CMH corridor (Washington, DC → Columbus, OH) runs ahead of the national average, served by 11 carriers across roughly 299 miles.
Data updated 2026-06-13
- 84.2%
- On-time
- +5.2 pts
- vs US avg
- 78 min
- Delay when late
- 4,435
- Flights
Cancelled
1.2%
Best Month
Oct 2024 95%
Worst Month
Jun 2025 64%
Distance
299 mi
Carriers
11
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 75 | 12 | 0 | 0 | YX,UA |
| Nov 2025 | 60 | 4 | 2 | 0 | UA,YX |
| Oct 2025 | 97 | 14 | 0 | 0 | UA,YX |
| Sep 2025 | 136 | 24 | 0 | 0 | UA,YX |
| Aug 2025 | 109 | 15 | 0 | 0 | YX,UA |
| Jul 2025 | 85 | 27 | 6 | 0 | YX |
| Jun 2025 | 113 | 41 | 1 | 1 | UA,YX |
| May 2025 | 129 | 31 | 1 | 0 | UA,YX |
| Apr 2025 | 141 | 18 | 0 | 0 | YX |
| Mar 2025 | 63 | 11 | 0 | 0 | YX |
| Feb 2025 | 42 | 7 | 0 | 0 | YX |
| Jan 2025 | 51 | 6 | 1 | 0 | YX |
| Dec 2024 | 60 | 8 | 0 | 0 | UA,YX |
| Nov 2024 | 59 | 10 | 0 | 0 | YX |
| Oct 2024 | 75 | 4 | 1 | 0 | UA,YX |
| Sep 2024 | 62 | 9 | 0 | 0 | YX,UA |
| Aug 2024 | 80 | 22 | 7 | 0 | YX |
| Jul 2024 | 106 | 15 | 3 | 0 | YX |
| Jun 2024 | 60 | 13 | 0 | 0 | YX |
| May 2024 | 41 | 10 | 0 | 0 | YX |
| Apr 2024 | 56 | 4 | 0 | 0 | YX |
| Mar 2024 | 58 | 5 | 0 | 0 | YX |
| Feb 2024 | 58 | 5 | 0 | 0 | YX |
| Jan 2024 | 70 | 11 | 0 | 0 | YX |
Cancellation Rate
1.2%
22 of 1,886 flights
Diversion Rate
0.1%
1 of 1,886 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAD - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Origin airport →CMH - Columbus
Full on-time, delay-cause, and seasonal performance for Columbus, OH.
Destination airport →Compare the two airports
See IAD and CMH side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAD–CMH.
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What the Data Says About IAD to CMH
Bureau of Transportation Statistics records show Washington to Columbus (IAD to CMH) running a 84.2% on-time rate over 4,435 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 78.2 minutes. The 299-mile corridor is served by 11 carriers, and over the last 24 months 1.2% of 1,886 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 95% on-time, while Jun 2025 came in at just 64% - a 31-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.