Route · STL → LAX · 2020–2025 BTS data
St. Louis to Los Angeles
The STL–LAX corridor (St. Louis, MO → Los Angeles, CA) runs behind the national average, served by 10 carriers across roughly 1,592 miles.
Data updated 2026-06-13
- 78.5%
- On-time
- -0.5 pts
- vs US avg
- 81 min
- Delay when late
- 5,885
- Flights
Cancelled
0.6%
Best Month
Oct 2024 94%
Worst Month
May 2024 59%
Distance
1,592 mi
Carriers
10
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 103 | 30 | 0 | 0 | WN,OO |
| Nov 2025 | 101 | 19 | 0 | 0 | OO,WN |
| Oct 2025 | 96 | 37 | 0 | 0 | OO,WN |
| Sep 2025 | 82 | 11 | 0 | 0 | WN,OO |
| Aug 2025 | 92 | 15 | 0 | 0 | OO,WN |
| Jul 2025 | 93 | 21 | 0 | 0 | OO,WN |
| Jun 2025 | 89 | 27 | 0 | 0 | AA,OO,WN |
| May 2025 | 73 | 15 | 1 | 0 | AA,WN |
| Apr 2025 | 77 | 20 | 1 | 0 | WN,AA |
| Mar 2025 | 82 | 10 | 0 | 0 | AA,WN |
| Feb 2025 | 44 | 10 | 0 | 1 | AA,WN |
| Jan 2025 | 57 | 5 | 5 | 0 | AA,WN |
| Dec 2024 | 85 | 12 | 0 | 0 | AA,WN |
| Nov 2024 | 87 | 10 | 0 | 0 | OO,WN,AA |
| Oct 2024 | 109 | 6 | 0 | 0 | WN,AA |
| Sep 2024 | 89 | 16 | 0 | 0 | WN,AA |
| Aug 2024 | 95 | 15 | 0 | 3 | AA,WN |
| Jul 2024 | 114 | 31 | 3 | 0 | AA,WN |
| Jun 2024 | 108 | 31 | 0 | 0 | AA,WN |
| May 2024 | 111 | 46 | 1 | 0 | AA,WN |
| Apr 2024 | 105 | 34 | 1 | 0 | AA,WN |
| Mar 2024 | 95 | 23 | 0 | 0 | AA,WN |
| Feb 2024 | 83 | 25 | 0 | 0 | AA,WN |
| Jan 2024 | 96 | 25 | 2 | 0 | AA,WN |
Cancellation Rate
0.6%
14 of 2,166 flights
Diversion Rate
0.2%
4 of 2,166 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 →LAX - Los Angeles
Full on-time, delay-cause, and seasonal performance for Los Angeles, CA.
Destination airport →Compare the two airports
See STL and LAX 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–LAX.
Routes with a similar on-time rate
What the Data Says About STL to LAX
5,885 tracked flights put the STL to LAX pairing (St. Louis to Los Angeles) at a 78.5% on-time rate, squarely in line with the wider network. Delays that do occur run 81.4 minutes on average. Across the 1,592-mile route and its 10 carriers, the trailing 24 months show 0.6% cancelled and 0.2% diverted (2,166 flights sampled).
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 59% - a 36-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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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.