Airport Tips & Quick Reference Guide to San Diego Airport (SAN)

WN4576 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN4576, which currently operates between the airports of San Diego - San Diego International Airport (Airport Code SAN) and Saint Louis - St Louis Lambert International Airport (Airport Code STL).
This flight data pertains specifically to the flight's details for Saturday, October 10, 2026.

WN4576 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

WN4576 Southwest Airlines to Saint Louis

Scheduled - On-time
Flight Status for Saturday October 10, 2026

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737MAX 8 Passenger

Departure

San Diego (SAN)
October 10, 2026
San Diego International Airport
Estimated Departure Time:
10:00 am
Terminal:
1
Gate:
102
Scheduled Departure Time: 10:00 am

Arrival

Saint Louis (STL)
October 10, 2026
St Louis Lambert International Airport
Estimated Arrival Time:
03:18 pm
Terminal:
2
Gate:
E12
Scheduled Arrival Time: 03:30 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.san-diego-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight WN4576?
The flight WN4576 is scheduled to flight on Monday, Thursday, Friday, Saturday on a weekly basis.

Which is the distance of flight WN4576?
The distance between the two airports is 1555 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in San Diego: 2026-10-10 09:06:03
Current Time in Saint Louis: 2026-10-10 11:06:03

Alternative Flights

Southwest Airlines is the only airline operating the route from San Diego to Saint Louis.

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights WN4576

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
09 October
02:17 pm
San Diego (SAN)
07:58 pm
Saint Louis (STL)
03h 41min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Thursday
08 October
02:25 pm
San Diego (SAN)
08:08 pm
Saint Louis (STL)
03h 43min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Monday
05 October
01:57 pm
San Diego (SAN)
07:36 pm
Saint Louis (STL)
03h 39min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Saturday
03 October
10:22 am
San Diego (SAN)
04:07 pm
Saint Louis (STL)
03h 45min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Friday
02 October
04:52 pm
()
11:24 pm
Saint Louis (STL)
Boeing 737-800
Boeing 737-800
- DIVERTED
Friday
02 October
02:26 pm
San Diego (SAN)
09:28 pm
San Diego (SAN)
Boeing 737-800
Boeing 737-800
Landed - DIVERTED
Thursday
01 October
03:09 pm
San Diego (SAN)
08:42 pm
Saint Louis (STL)
Boeing 737-800
Boeing 737-800
Landed - Delayed