WN3821 Flight Status Southwest Airlines: St. Louis to Dallas (SWA3821)

WN 3821 St. Louis to Dallas Flight Status

Not scheduled today. Latest flight: September 30th, 2026 ; recent history is in the table below.

WN 3821 Flight Status & Schedule Southwest Airlines St. Louis to Dallas

Date From To Departure Arrival Status Details
Sep 30 STL DAL 21:31 22:53 Landed Late Track >
Sep 29 STL DAL 20:52 22:08 Landed Track >
Sep 27 STL DAL 21:43 22:56 Landed Late Track >
Sep 23 STL DAL 21:01 22:15 Landed Track >
Sep 22 STL DAL 21:10 22:28 Landed Track >
Sep 20 STL DAL 21:06 22:39 Landed Track >
Sep 16 STL DAL 21:01 22:18 Landed Track >
Sep 15 STL DAL 21:32 22:47 Landed Late Track >
Sep 13 STL DAL 21:28 22:43 Landed Track >
Sep 09 STL DAL 20:53 22:07 Landed Track >

Southwest Airlines' St. Louis–Dallas flight covers 878 km (546 mi). Its timetable allows 1 h 45 min; in practice it usually takes about 1 h 15 min, so it often makes up time. It is not flying today; the last flight, on 30 September 2026, landed 23 minutes late.

< All St. Louis STL Departures All Dallas DAL Arrivals >

About WN 3821

Route
St. Louis Lambert International Airport STL to Dallas Love Field Airport DAL
Distance
878 km (546 mi)
Typical flight time
1 h 15 min
On time
7 of the last 10
Average delay when late
22 min
Usually departs from
Terminal 2

WN 3821 FAQ

How long is the WN3821 flight?
The timetable allows 1 h 45 min. St. Louis to Dallas is 878 km (546 mi).
How often is WN3821 late?
3 of the last 10 flights arrived 15 or more minutes late; when late, by 22 minutes on average.
Which terminal does WN3821 use?
It usually leaves from Terminal 2 at St. Louis Lambert International Airport (STL) and arrives at Terminal 1 at Dallas Love Field Airport (DAL). Check the flight card above for today's terminal and gate.
What other flight numbers does WN3821 have?
Also listed as SWA3821 (Southwest Airlines' ICAO code) and WN 3821.

WN3821 and St. Louis STL to Dallas DAL Flights

Other flights departing from St. Louis STL: WN3843, WN3865, WN3955, WN4166

Other flights arriving at Dallas DAL: WN2452, WN378, WN488

All flights connecting St. Louis STL to Dallas DAL.