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WN3812 Flight Status Southwest Airlines: Detroit to St. Louis (SWA3812)

WN 3812 Detroit to St. Louis Flight Status

Southwest Airlines Flight WN3812 from Detroit Metropolitan Wayne County Airport DTW to St. Louis Lambert International Airport STL is not scheduled for today July 18th, 2026.
The last time the flight was scheduled was on February 28th, 2026.
Check the table below for WN3812's most recent flight history:

WN 3812 Flight Status & Schedule

Date Departure Arrival Status
Feb 28 13:43 14:04
Landed
 Track >
Feb 21 13:57 14:15
Landed
 Track >
Feb 14 13:36 13:59
Landed
 Track >
< All DTW Departures All STL Arrivals >

Southwest Airlines WN 3812 Detroit to St. Louis Flight Information

Southwest Airlines Flight WN3812 connects Detroit, United States to St. Louis, United States, taking off from Detroit Metropolitan Wayne County Airport DTW and landing at St. Louis Lambert International Airport STL.

How long is the WN3812 flight from Detroit to St. Louis?

The average flight time from Detroit to St. Louis is 1 hour and 20 minutes. The flight distance is 707 km / 439 miles and the average flight speed is 526 km/h / 327 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3812 Detroit to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3812 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3812 arriving at?

Flight WN3812 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN3812 flight?

The latest flight took off on Saturday, February 28th, 2026 with the flight status being Landed on 14:04.

How else can the flight WN3812 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3812, WN 3812, SWA 3812.

How often is flight WN3812 delayed?

On average, 33% of all WN3812 flights are delayed. The average delay is 10 minutes.

Can I get compensation for my delayed or cancelled WN3812 flight or baggage issues?

If your WN3812 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN3812 Flight Tracker above for more details.

WN3812 and Detroit DTW to St. Louis STL Flights

Other flights departing from Detroit DTW: DL4481, DL3923, AA4527, WN175

Other flights arriving at St. Louis STL: WN249, WN3520, AA6369, UA4494

All flights connecting Detroit DTW to St. Louis STL.

WN3812 Southwest Airlines Flight: Detroit to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: UA3315 IU2728 AC2408 FJ1087 RJ157 XQ999 2S4040 8L9903 WF9010 GA1414
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.