Route
STL → DAL
St. Louis Lambert International Airport Dallas Love Field
How punctual is this route?
- On-time arrivals
- 75.2%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,944
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 48%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 18%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.4% | 172 |
| October 2025 | 74.5% | 156 |
| November 2025 | 79.2% | 153 |
| December 2025 | 77.5% | 153 |
| January 2026 | 90.5% | 145 |
| February 2026 | 87.0% | 149 |
| March 2026 | 75.8% | 167 |
| April 2026 | 79.5% | 158 |
| May 2026 | 73.0% | 167 |
| June 2026 | 56.0% | 170 |
| July 2026 | 68.1% | 189 |
| August 2026 | 69.1% | 165 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 1,944 | 75.2% | 1.4% | 64 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2167
5% late · 60 flights
-
WN3974
25% late · 59 flights
-
WN2533
27% late · 57 flights
-
WN4199
9% late · 55 flights
-
WN2702
6% late · 54 flights
-
WN3597
49% late · 52 flights
-
WN3904
67% late · 52 flights
-
WN457
40% late · 49 flights
-
WN4396
9% late · 48 flights
-
WN1838
21% late · 43 flights
-
WN1253
10% late · 42 flights
-
WN1396
10% late · 42 flights
-
WN2791
7% late · 42 flights
-
WN1929
13% late · 41 flights
-
WN2104
25% late · 41 flights
-
WN1039
36% late · 33 flights
-
WN3797
42% late · 33 flights
-
WN3215
6% late · 32 flights
-
WN1062
26% late · 31 flights
-
WN1473
34% late · 31 flights
-
WN1623
23% late · 31 flights
-
WN2345
0% late · 28 flights
-
WN3203
11% late · 28 flights
-
WN1322
35% late · 27 flights
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