Southwest Airlines
Is WN4390 delayed?
Yes — WN4390 landed in San Antonio 125 min late, at 01:24 on Sep 28 (as of Sep 28, 06:24 UTC). Over its last 3 recorded arrivals, 3 landed more than 15 min late.
125 min late
Official source · Updated
Departure
St Louis
STL
Actual
Scheduled 21:28
Sep 27
Arrival
San Antonio
SAT
Actual
Scheduled 23:19
Sep 28
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 125 min late
St Louis → San Antonio
- 39 min late
St Louis → San Antonio
- 76 min late
St Louis → San Antonio
Is WN4390 usually late?
Observation window: Aug 30, 2026 – Sep 29, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 27, 2026Arrived | St Louis | San Antonio | 125 | |
| Sep 20, 2026Arrived | St Louis | San Antonio | 39 | |
| Sep 6, 2026Arrived | St Louis | San Antonio | 76 |
Email me if WN4390 runs late
We email you if your next WN4390 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.