WN3821 Southwest Airlines - Flight Status
Below, you can find details about Southwest Airlines flight WN3821, which currently operates between the airports of Saint Louis - St Louis Lambert International Airport (Airport Code STL) and Raleigh/Durham - Raleigh-Durham International Airport (Airport Code RDU).
This flight data pertains specifically to the flight's details for Friday, February 20, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights WN3821
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights WN3821
WN3821 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
WN3821 Southwest Airlines from Saint Louis
Scheduled - On-time
Flight Status for Friday February 20, 2026
Scheduled - On-time
Flight Status for Friday February 20, 2026
Airline information
Southwest Airlines
Equipment: Boeing 737-700 (winglets) Passenger/BBJ1
Departure
Saint Louis (STL)
February 20, 2026
St Louis Lambert International Airport
Estimated Departure Time:
08:10 pm
Terminal:
2
Gate:
E34
Scheduled Departure Time: 08:10 pm
Arrival
Raleigh/Durham (RDU)
February 20, 2026
Raleigh-Durham International Airport
Estimated Arrival Time:
10:48 pm
Terminal:
1
Gate:
A8
Scheduled Arrival Time: 10:55 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.raleigh-durham-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 WN3821?
The flight WN3821 is scheduled to flight on Monday, Thursday, Friday on a weekly basis.
Which is the distance of flight WN3821?
The distance between the two airports is 667 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 Saint Louis: 2026-02-20 19:49:53
Current Time in Raleigh/Durham: 2026-02-20 20:49:53
The flight WN3821 is scheduled to flight on Monday, Thursday, Friday on a weekly basis.
Which is the distance of flight WN3821?
The distance between the two airports is 667 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 Saint Louis: 2026-02-20 19:49:53
Current Time in Raleigh/Durham: 2026-02-20 20:49:53
Alternative Flights
The following airline serve the same route between Saint Louis and Raleigh/Durham:
Southwest Airlines - Flight Number: WN187. (On Time performance: 94 - Average Delay: 2 minutes)
Southwest Airlines - Flight Number: WN187. (On Time performance: 94 - Average Delay: 2 minutes)
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
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 WN3821
Date
Departure
Arrival
Duration
Aircraft
Status
Monday
16 February
16 February
08:28 pm
Saint Louis (STL)
Saint Louis (STL)
11:02 pm
Raleigh/Durham (RDU)
Raleigh/Durham (RDU)
01h 34min
Boeing 737-700
Boeing 737-700
Landed - On-time
Friday
13 February
13 February
08:01 pm
Saint Louis (STL)
Saint Louis (STL)
10:33 pm
Raleigh/Durham (RDU)
Raleigh/Durham (RDU)
01h 32min
Boeing 737-700
Boeing 737-700
Landed - On-time
Thursday
12 February
12 February
08:13 pm
Saint Louis (STL)
Saint Louis (STL)
10:44 pm
Raleigh/Durham (RDU)
Raleigh/Durham (RDU)
01h 31min
Boeing 737-700
Boeing 737-700
Landed - On-time