Route · HOU → STL · 2020–2025 BTS data
Houston to St. Louis
The HOU–STL corridor (Houston, TX → St. Louis, MO) runs ahead of the national average, served by 1 carrier across roughly 687 miles.
Data updated 2026-06-13
- 83.7%
- On-time
- +4.7 pts
- vs US avg
- 56 min
- Delay when late
- 7,598
- Flights
Cancelled
1.0%
Best Month
Oct 2024 94%
Worst Month
May 2024 69%
Distance
687 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 138 | 19 | 0 | 0 | WN |
| Nov 2025 | 132 | 14 | 1 | 0 | WN |
| Oct 2025 | 123 | 26 | 0 | 0 | WN |
| Sep 2025 | 125 | 15 | 0 | 0 | WN |
| Aug 2025 | 130 | 30 | 0 | 1 | WN |
| Jul 2025 | 144 | 31 | 0 | 1 | WN |
| Jun 2025 | 139 | 32 | 1 | 0 | WN |
| May 2025 | 131 | 20 | 3 | 0 | WN |
| Apr 2025 | 125 | 14 | 0 | 0 | WN |
| Mar 2025 | 135 | 21 | 0 | 0 | WN |
| Feb 2025 | 109 | 14 | 2 | 0 | WN |
| Jan 2025 | 106 | 11 | 12 | 0 | WN |
| Dec 2024 | 135 | 24 | 1 | 0 | WN |
| Nov 2024 | 122 | 10 | 0 | 0 | WN |
| Oct 2024 | 135 | 8 | 0 | 0 | WN |
| Sep 2024 | 125 | 13 | 0 | 0 | WN |
| Aug 2024 | 130 | 14 | 0 | 0 | WN |
| Jul 2024 | 143 | 32 | 6 | 1 | WN |
| Jun 2024 | 139 | 26 | 0 | 0 | WN |
| May 2024 | 131 | 40 | 2 | 0 | WN |
| Apr 2024 | 128 | 18 | 0 | 0 | WN |
| Mar 2024 | 129 | 13 | 1 | 0 | WN |
| Feb 2024 | 112 | 12 | 0 | 0 | WN |
| Jan 2024 | 119 | 20 | 3 | 0 | WN |
Cancellation Rate
1.0%
32 of 3,085 flights
Diversion Rate
0.1%
3 of 3,085 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
HOU - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →STL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
Destination airport →Compare the two airports
See HOU 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 HOU–STL.
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What the Data Says About HOU to STL
Bureau of Transportation Statistics records show Houston to St. Louis (HOU to STL) running a 83.7% on-time rate over 7,598 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 56.1 minutes. The 687-mile corridor is served by 1 carrier, and over the last 24 months 1.0% of 3,085 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while May 2024 came in at just 69% - a 25-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.