Route · STL → CMH · 2020–2025 BTS data
St. Louis to Columbus
The STL–CMH corridor (St. Louis, MO → Columbus, OH) runs ahead of the national average, served by 1 carrier across roughly 409 miles.
Data updated 2026-06-13
- 82.3%
- On-time
- +3.3 pts
- vs US avg
- 57 min
- Delay when late
- 2,913
- Flights
Cancelled
0.7%
Best Month
Sep 2025 95%
Worst Month
Jul 2024 65%
Distance
409 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 58 | 12 | 0 | 0 | WN |
| Nov 2025 | 54 | 11 | 0 | 0 | WN |
| Oct 2025 | 58 | 4 | 0 | 0 | WN |
| Sep 2025 | 56 | 3 | 0 | 0 | WN |
| Aug 2025 | 56 | 7 | 0 | 0 | WN |
| Jul 2025 | 57 | 13 | 0 | 1 | WN |
| Jun 2025 | 56 | 14 | 0 | 0 | WN |
| May 2025 | 56 | 16 | 0 | 0 | WN |
| Apr 2025 | 55 | 8 | 0 | 0 | WN |
| Mar 2025 | 53 | 10 | 0 | 0 | WN |
| Feb 2025 | 52 | 8 | 1 | 0 | WN |
| Jan 2025 | 58 | 10 | 5 | 0 | WN |
| Dec 2024 | 58 | 8 | 0 | 0 | WN |
| Nov 2024 | 55 | 10 | 0 | 0 | WN |
| Oct 2024 | 58 | 6 | 0 | 0 | WN |
| Sep 2024 | 55 | 6 | 0 | 0 | WN |
| Aug 2024 | 57 | 7 | 0 | 0 | WN |
| Jul 2024 | 57 | 20 | 0 | 0 | WN |
| Jun 2024 | 53 | 10 | 0 | 0 | WN |
| May 2024 | 50 | 20 | 0 | 0 | WN |
| Apr 2024 | 49 | 11 | 0 | 0 | WN |
| Mar 2024 | 53 | 9 | 0 | 0 | WN |
| Feb 2024 | 54 | 7 | 0 | 0 | WN |
| Jan 2024 | 58 | 11 | 3 | 0 | WN |
Cancellation Rate
0.7%
9 of 1,326 flights
Diversion Rate
0.1%
1 of 1,326 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
STL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
Origin airport →CMH - Columbus
Full on-time, delay-cause, and seasonal performance for Columbus, OH.
Destination airport →Compare the two airports
See STL 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 STL–CMH.
Routes with a similar on-time rate
What the Data Says About STL to CMH
Bureau of Transportation Statistics records show St. Louis to Columbus (STL to CMH) running a 82.3% on-time rate over 2,913 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 56.8 minutes. The 409-mile corridor is served by 1 carrier, and over the last 24 months 0.7% of 1,326 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 95% on-time, while Jul 2024 came in at just 65% - a 30-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from STL to CMH? ▼
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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.