Route · STL → ATL · 2020–2025 BTS data
St. Louis to Atlanta
The STL–ATL corridor (St. Louis, MO → Atlanta, GA) runs ahead of the national average, served by 6 carriers across roughly 484 miles.
Data updated 2026-06-13
- 86.9%
- On-time
- +7.9 pts
- vs US avg
- 69 min
- Delay when late
- 19,051
- Flights
Cancelled
1.0%
Best Month
Sep 2025 95%
Worst Month
Jul 2024 68%
Distance
484 mi
Carriers
6
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 311 | 59 | 5 | 1 | DL,WN,F9 |
| Nov 2025 | 284 | 43 | 9 | 2 | DL,F9,WN |
| Oct 2025 | 348 | 34 | 0 | 2 | WN,DL,F9 |
| Sep 2025 | 317 | 16 | 0 | 0 | WN,DL,F9 |
| Aug 2025 | 331 | 42 | 5 | 1 | WN,F9,DL |
| Jul 2025 | 351 | 65 | 2 | 1 | DL,WN,F9 |
| Jun 2025 | 331 | 64 | 5 | 2 | DL,WN,F9 |
| May 2025 | 302 | 61 | 1 | 0 | DL,WN |
| Apr 2025 | 285 | 41 | 3 | 1 | DL,WN |
| Mar 2025 | 282 | 39 | 0 | 1 | DL,WN |
| Feb 2025 | 247 | 39 | 0 | 1 | DL,WN |
| Jan 2025 | 264 | 29 | 18 | 0 | DL,WN |
| Dec 2024 | 292 | 52 | 0 | 0 | DL,WN |
| Nov 2024 | 276 | 25 | 0 | 0 | WN,DL |
| Oct 2024 | 294 | 16 | 1 | 0 | WN,DL |
| Sep 2024 | 285 | 34 | 1 | 1 | WN,DL |
| Aug 2024 | 299 | 29 | 1 | 1 | DL,WN |
| Jul 2024 | 298 | 95 | 14 | 1 | DL,WN |
| Jun 2024 | 294 | 37 | 1 | 0 | DL,WN |
| May 2024 | 313 | 64 | 0 | 1 | DL,WN |
| Apr 2024 | 295 | 33 | 0 | 0 | DL,WN |
| Mar 2024 | 290 | 39 | 1 | 0 | DL,WN |
| Feb 2024 | 248 | 28 | 0 | 0 | DL,WN |
| Jan 2024 | 264 | 52 | 3 | 2 | DL,WN |
Cancellation Rate
1.0%
70 of 7,101 flights
Diversion Rate
0.3%
18 of 7,101 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 →ATL - Atlanta
Full on-time, delay-cause, and seasonal performance for Atlanta, GA.
Destination airport →Compare the two airports
See STL and ATL 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–ATL.
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What the Data Says About STL to ATL
St. Louis to Atlanta (STL to ATL) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.9% on-time rate across 19,051 flights, with delays that do happen averaging 68.5 minutes. The corridor runs roughly 484 miles and is served by 6 carriers. Over the most recent 24 months, 70 of 7,101 flights were cancelled (1.0%) and 18 diverted (0.3%).
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 68% - 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.