Route
STL → RSW
St. Louis Lambert International Airport Southwest Florida International Airport
How punctual is this route?
- On-time arrivals
- 78.7%
- Less than 15 minutes late
- Cancelled
- 0.4%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,009
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 18%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.7% | 60 |
| October 2025 | 77.0% | 87 |
| November 2025 | 86.6% | 83 |
| December 2025 | 72.9% | 87 |
| January 2026 | 80.0% | 92 |
| February 2026 | 79.8% | 94 |
| March 2026 | 74.2% | 133 |
| April 2026 | 87.8% | 91 |
| May 2026 | 80.0% | 85 |
| June 2026 | 72.3% | 65 |
| July 2026 | 75.4% | 65 |
| August 2026 | 73.1% | 67 |
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 | 1,009 | 78.7% | 0.4% | 58 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN2703
15% late · 64 flights
-
WN4831
40% late · 60 flights
-
WN2679
21% late · 59 flights
-
WN2311
3% late · 58 flights
-
WN4514
31% late · 58 flights
-
WN457
26% late · 58 flights
-
WN3822
8% late · 54 flights
-
WN4940
13% late · 52 flights
-
WN3554
18% late · 40 flights
-
WN1555
9% late · 33 flights
-
WN655
21% late · 33 flights
-
WN4512
3% late · 32 flights
-
WN677
28% late · 32 flights
-
WN2331
16% late · 31 flights
-
WN352
10% late · 31 flights
-
WN694
6% late · 31 flights
-
WN1412
4% late · 28 flights
-
WN4074
36% late · 28 flights
-
WN2341
23% late · 26 flights
-
WN577
39% late · 25 flights
-
WN3884
8% late · 24 flights
-
WN3439
27% late · 22 flights
-
WN3824
41% late · 22 flights
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