| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 03 | STL | PHL | 22:31 | 01:15 |
Delayed
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| Aug 02 | STL | PHL | 21:01 | 23:50 |
Landed
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| Jul 31 | STL | PHL | 21:49 | 00:36 |
Landed Late
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| Jul 30 | STL | PHL | 21:38 | 00:26 |
Landed Late
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| Jul 29 | STL | PHL | 19:16 | 22:06 |
Landed
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| Jul 28 | STL | PHL | 21:21 | 00:09 |
Delayed
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| Jul 27 | STL | PHL | 21:23 | 00:08 |
Landed
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| Jul 26 | STL | PHL | 21:01 | 23:57 |
Landed
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| Jul 24 | STL | PHL | 21:29 | 00:06 |
Landed
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| Jul 23 | STL | PHL | 21:08 | 23:52 |
Landed
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Southwest Airlines Flight WN3966 connects St. Louis, United States to Philadelphia, United States, taking off from St. Louis Lambert International Airport STL and landing at Philadelphia International Airport PHL.
How long is the WN3966 flight from St. Louis to Philadelphia?
The average flight time from St. Louis to Philadelphia is 1 hour and 46 minutes. The flight distance is 1306 km / 811 miles and the average flight speed is 735 km/h / 457 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3966 St. Louis to Philadelphia?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3966 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3966 arriving at?
Flight WN3966 arrives at Philadelphia International Airport (PHL) Terminal E.
When was the latest WN3966 flight?
The latest flight took off on Tuesday, August 4th, 2026 with the flight status being En-Route on 01:15.
How else can the flight WN3966 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3966, WN 3966, SWA 3966.
How often is flight WN3966 delayed?
On average, 70% of all WN3966 flights are delayed. The average delay is 41 minutes.
Can I get compensation for my delayed or cancelled WN3966 flight or baggage issues?
If your WN3966 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 WN3966 Flight Tracker above for more details.
Other flights departing from St. Louis STL: WN4619, WN4812, WN3900, WN2453
Other flights arriving at Philadelphia PHL: AA3061, AA3163, F91274, UA3502
All flights connecting St. Louis STL to Philadelphia PHL.