Route · CMH → STL · 2020–2025 BTS data
Columbus to St. Louis
The CMH–STL corridor (Columbus, OH → St. Louis, MO) runs ahead of the national average, served by 1 carrier across roughly 409 miles.
Data updated 2026-06-13
- 84.5%
- On-time
- +5.5 pts
- vs US avg
- 60 min
- Delay when late
- 2,934
- Flights
Cancelled
1.1%
Best Month
Sep 2025 95%
Worst Month
May 2024 65%
Distance
409 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 57 | 11 | 0 | 0 | WN |
| Nov 2025 | 54 | 8 | 0 | 0 | WN |
| Oct 2025 | 57 | 6 | 0 | 0 | WN |
| Sep 2025 | 56 | 3 | 1 | 0 | WN |
| Aug 2025 | 56 | 5 | 1 | 0 | WN |
| Jul 2025 | 57 | 15 | 0 | 0 | WN |
| Jun 2025 | 56 | 11 | 0 | 0 | WN |
| May 2025 | 56 | 9 | 0 | 0 | WN |
| Apr 2025 | 55 | 10 | 0 | 0 | WN |
| Mar 2025 | 53 | 9 | 0 | 1 | WN |
| Feb 2025 | 52 | 6 | 1 | 0 | WN |
| Jan 2025 | 58 | 5 | 4 | 1 | WN |
| Dec 2024 | 58 | 12 | 0 | 0 | WN |
| Nov 2024 | 54 | 5 | 0 | 0 | WN |
| Oct 2024 | 58 | 4 | 1 | 0 | WN |
| Sep 2024 | 55 | 4 | 0 | 0 | WN |
| Aug 2024 | 57 | 8 | 1 | 0 | WN |
| Jul 2024 | 57 | 15 | 0 | 0 | WN |
| Jun 2024 | 54 | 12 | 0 | 0 | WN |
| May 2024 | 54 | 19 | 0 | 0 | WN |
| Apr 2024 | 52 | 10 | 0 | 0 | WN |
| Mar 2024 | 52 | 11 | 0 | 0 | WN |
| Feb 2024 | 50 | 5 | 0 | 0 | WN |
| Jan 2024 | 55 | 8 | 6 | 0 | WN |
Cancellation Rate
1.1%
15 of 1,323 flights
Diversion Rate
0.2%
2 of 1,323 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
CMH - Columbus
Full on-time, delay-cause, and seasonal performance for Columbus, OH.
Origin airport →STL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
Destination airport →Compare the two airports
See CMH and STL side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to CMH–STL.
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What the Data Says About CMH to STL
Bureau of Transportation Statistics records show Columbus to St. Louis (CMH to STL) running a 84.5% on-time rate over 2,934 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 59.9 minutes. The 409-mile corridor is served by 1 carrier, and over the last 24 months 1.1% of 1,323 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 95% on-time, while May 2024 came in at just 65% - a 30-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.