Southwest Airlines
Is WN4591 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (UTC)
158 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
St Louis
STL
Actual
Sep 8
Arrival
Miami
MIA
Scheduled
Sep 8
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Service date: · Scheduled arrival date; departure time unavailable (America/New_York)
41 min late
Official source · Updated
Departure
St Louis
STL
Scheduled
Not available
Arrival
Miami
MIA
Actual
Sep 8
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 13 min early
STL → MIA
- 17 min early
STL → MIA
- 6 min early
STL → MIA
- 17 min late
STL → MIA
- 20 min late
STL → MIA
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 8
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 0
- Observed occurrences
- 9
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 16, 2026Arrived | St Louis | Miami | -13 | |
| Sep 15, 2026Arrived | St Louis | Miami | -17 | |
| Sep 13, 2026Arrived | St Louis | Miami | -6 | |
| Sep 12, 2026Arrived | St Louis | Miami | 17 | |
| Sep 9, 2026Arrived | St Louis | Miami | 20 | |
| Sep 8, 2026Arrived | St Louis | Miami | 41 | |
| Sep 6, 2026Arrived | St Louis | Miami | 317 | |
| Sep 5, 2026Arrived | St Louis | Miami | -7 |