Route · AUS → STL · 2020–2025 BTS data
Austin to St. Louis
The AUS–STL corridor (Austin, TX → St. Louis, MO) runs ahead of the national average, served by 3 carriers across roughly 721 miles.
Data updated 2026-06-13
- 84.8%
- On-time
- +5.8 pts
- vs US avg
- 55 min
- Delay when late
- 5,795
- Flights
Cancelled
0.3%
Best Month
Sep 2024 93%
Worst Month
Jul 2024 70%
Distance
721 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 91 | 17 | 0 | 0 | WN |
| Nov 2025 | 85 | 17 | 0 | 0 | WN |
| Oct 2025 | 83 | 14 | 0 | 0 | WN |
| Sep 2025 | 73 | 15 | 0 | 0 | WN |
| Aug 2025 | 76 | 17 | 0 | 0 | WN |
| Jul 2025 | 93 | 28 | 0 | 0 | WN |
| Jun 2025 | 91 | 21 | 0 | 0 | WN |
| May 2025 | 90 | 15 | 0 | 0 | WN |
| Apr 2025 | 87 | 11 | 1 | 0 | WN |
| Mar 2025 | 78 | 12 | 0 | 0 | WN |
| Feb 2025 | 60 | 15 | 0 | 0 | WN |
| Jan 2025 | 63 | 7 | 3 | 0 | WN |
| Dec 2024 | 77 | 10 | 0 | 0 | WN |
| Nov 2024 | 78 | 12 | 0 | 0 | WN |
| Oct 2024 | 85 | 10 | 0 | 0 | WN |
| Sep 2024 | 73 | 5 | 0 | 0 | WN |
| Aug 2024 | 76 | 6 | 0 | 0 | WN |
| Jul 2024 | 89 | 27 | 0 | 1 | WN |
| Jun 2024 | 86 | 12 | 0 | 0 | WN |
| May 2024 | 91 | 26 | 1 | 0 | WN |
| Apr 2024 | 83 | 13 | 0 | 0 | WN |
| Mar 2024 | 65 | 11 | 0 | 0 | WN |
| Feb 2024 | 49 | 5 | 0 | 0 | WN |
| Jan 2024 | 56 | 7 | 0 | 0 | WN |
Cancellation Rate
0.3%
5 of 1,878 flights
Diversion Rate
0.1%
1 of 1,878 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
AUS - Austin
Full on-time, delay-cause, and seasonal performance for Austin, 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 AUS 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 AUS–STL.
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What the Data Says About AUS to STL
Bureau of Transportation Statistics records show Austin to St. Louis (AUS to STL) running a 84.8% on-time rate over 5,795 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 55.3 minutes. The 721-mile corridor is served by 3 carriers, and over the last 24 months 0.3% of 1,878 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Sep 2024 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 70% - a 24-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.