Route
ATL → STL
Hartsfield Jackson Atlanta International Airport St. Louis Lambert International Airport
How punctual is this route?
- On-time arrivals
- 81.8%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,678
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Late-arriving aircraft 41%
- Air traffic control & airport 12%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 92.4% | 317 |
| October 2025 | 85.6% | 348 |
| November 2025 | 81.1% | 285 |
| December 2025 | 79.2% | 311 |
| January 2026 | 83.5% | 279 |
| February 2026 | 81.3% | 254 |
| March 2026 | 76.7% | 283 |
| April 2026 | 83.6% | 299 |
| May 2026 | 81.3% | 330 |
| June 2026 | 81.9% | 318 |
| July 2026 | 74.0% | 330 |
| August 2026 | 79.9% | 324 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 2,348 | 84.6% | 1.9% | 62 min |
| Southwest Airlines | 1,095 | 79.0% | 0.4% | 61 min |
| Frontier Airlines | 235 | 66.2% | 1.7% | 54 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1403
17% late · 330 flights
-
DL1571
8% late · 315 flights
-
DL1393
21% late · 302 flights
-
DL1400
12% late · 239 flights
-
DL1485
12% late · 239 flights
-
F94473
34% late · 234 flights
-
DL2833
25% late · 230 flights
-
DL2700
10% late · 155 flights
-
DL1102
16% late · 147 flights
-
DL3156
17% late · 110 flights
-
DL1703
10% late · 105 flights
-
DL566
15% late · 102 flights
-
WN449
5% late · 95 flights
-
WN457
23% late · 60 flights
-
WN1395
33% late · 58 flights
-
WN247
7% late · 58 flights
-
WN250
13% late · 53 flights
-
WN3937
4% late · 50 flights
-
WN3793
24% late · 47 flights
-
DL543
19% late · 37 flights
-
WN240
22% late · 36 flights
-
WN241
83% late · 36 flights
-
WN1070
33% late · 33 flights
-
WN2288
29% late · 31 flights
In the news
More headlines →-
City Council backs $55 million in new Hartsfield-Jackson funding as construction projects multiply
The Business Journals ATL
-
Over 400 flights cancelled due to severe weather at Hartsfield-Jackson Atlanta International Airport, Georgia
The Watchers - Watching the world evolve and transform ATL
-
Hartsfield-Jackson Atlanta International Airport
The Aviation Hub ATL
Headlines found by Google News; stories open on the publisher's site.
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