| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 04 | DCA | STL | 12:06 | 12:57 |
Landed
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| Mar 03 | DCA | STL | 12:17 | 13:18 |
Landed
|
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| Mar 02 | DCA | STL | 12:10 | 13:11 |
Landed
|
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| Feb 25 | DCA | STL | 12:19 | 13:24 |
Landed
|
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| Feb 24 | DCA | STL | 12:16 | 13:15 |
Landed
|
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| Feb 23 | DCA | STL | 12:25 | 13:12 |
Landed
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| Feb 19 | DCA | STL | 12:14 | 13:23 |
Landed
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| Feb 18 | DCA | STL | 12:10 | 13:25 |
Landed
|
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| Feb 17 | DCA | STL | 12:05 | 13:04 |
Landed
|
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| Feb 15 | DCA | STL | 12:01 | 12:56 |
Landed
|
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Southwest Airlines Flight WN3143 connects Washington, United States to St. Louis, United States, taking off from Washington Ronald Reagan National Airport DCA and landing at St. Louis Lambert International Airport STL.
How long is the WN3143 flight from Washington to St. Louis?
The average flight time from Washington to St. Louis is 2 hours. The flight distance is 1154 km / 717 miles and the average flight speed is 579 km/h / 360 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3143 Washington to St. Louis?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3143 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3143 arriving at?
Flight WN3143 arrives at St. Louis Lambert International Airport (STL) Terminal 2.
When was the latest WN3143 flight?
The latest flight took off on Wednesday, March 4th, 2026 with the flight status being Landed on 12:57.
How else can the flight WN3143 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3143, WN 3143, SWA 3143.
How often is flight WN3143 delayed?
On average, 0% of all WN3143 flights are delayed. The average delay is 0 minutes.
Can I get compensation for my delayed or cancelled WN3143 flight or baggage issues?
If your WN3143 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 WN3143 Flight Tracker above for more details.
Other flights departing from Washington DCA: UA1413, DL5779, WN1312, AA4649
Other flights arriving at St. Louis STL: DL1506, WN2063, WN3255, AA3667
All flights connecting Washington DCA to St. Louis STL.