Route · STL → AUS · 2020–2025 BTS data
St. Louis to Austin
The STL–AUS corridor (St. Louis, MO → Austin, TX) runs ahead of the national average, served by 3 carriers across roughly 721 miles.
Data updated 2026-06-13
- 80.4%
- On-time
- +1.4 pts
- vs US avg
- 59 min
- Delay when late
- 5,770
- Flights
Cancelled
0.6%
Best Month
Oct 2024 92%
Worst Month
Jul 2024 65%
Distance
721 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 91 | 27 | 0 | 0 | WN |
| Nov 2025 | 85 | 19 | 0 | 0 | WN |
| Oct 2025 | 83 | 22 | 0 | 0 | WN |
| Sep 2025 | 73 | 8 | 0 | 0 | WN |
| Aug 2025 | 76 | 13 | 1 | 0 | WN |
| Jul 2025 | 93 | 24 | 0 | 1 | WN |
| Jun 2025 | 91 | 18 | 0 | 1 | WN |
| May 2025 | 90 | 21 | 1 | 0 | WN |
| Apr 2025 | 87 | 18 | 0 | 0 | WN |
| Mar 2025 | 78 | 14 | 1 | 1 | WN |
| Feb 2025 | 60 | 12 | 0 | 0 | WN |
| Jan 2025 | 62 | 11 | 4 | 0 | WN |
| Dec 2024 | 77 | 9 | 0 | 0 | WN |
| Nov 2024 | 77 | 11 | 0 | 0 | WN |
| Oct 2024 | 87 | 7 | 1 | 0 | WN |
| Sep 2024 | 73 | 6 | 0 | 0 | WN |
| Aug 2024 | 76 | 15 | 0 | 0 | WN |
| Jul 2024 | 89 | 31 | 0 | 0 | WN |
| Jun 2024 | 86 | 23 | 0 | 0 | WN |
| May 2024 | 91 | 29 | 0 | 1 | WN |
| Apr 2024 | 83 | 15 | 0 | 0 | WN |
| Mar 2024 | 62 | 17 | 0 | 0 | WN |
| Feb 2024 | 37 | 5 | 0 | 0 | WN |
| Jan 2024 | 45 | 11 | 3 | 0 | WN |
Cancellation Rate
0.6%
11 of 1,852 flights
Diversion Rate
0.2%
4 of 1,852 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 →AUS - Austin
Full on-time, delay-cause, and seasonal performance for Austin, TX.
Destination airport →Compare the two airports
See STL and AUS 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–AUS.
Routes with a similar on-time rate
What the Data Says About STL to AUS
5,770 tracked flights put the STL to AUS pairing (St. Louis to Austin) at a 80.4% on-time rate, squarely in line with the wider network. Delays that do occur run 58.7 minutes on average. Across the 721-mile route and its 3 carriers, the trailing 24 months show 0.6% cancelled and 0.2% diverted (1,852 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Jul 2024 came in at just 65% - a 27-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.