| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 03 | STL | SFO | 22:04 | 00:17 |
Delayed
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| Dec 27 | STL | SFO | 19:16 | 21:30 |
Delayed
|
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| Dec 20 | STL | SFO | 17:12 | 19:33 |
Landed
|
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| Nov 29 | STL | SFO | 17:57 | 20:20 |
Landed Late
|
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| Nov 22 | STL | SFO | 17:36 | 19:15 |
Landed
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Southwest Airlines Flight WN3665 connects St. Louis, United States to San Francisco, United States, taking off from St. Louis Lambert International Airport STL and landing at San Francisco International Airport SFO.
How long is the WN3665 flight from St. Louis to San Francisco?
The average flight time from St. Louis to San Francisco is 4 hours and 10 minutes. The flight distance is 2786 km / 1731 miles and the average flight speed is 672 km/h / 417 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3665 St. Louis to San Francisco?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3665 is 3.5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3665 arriving at?
Flight WN3665 arrives at San Francisco International Airport (SFO) Terminal 2.
When was the latest WN3665 flight?
The latest flight took off on Sunday, January 4th, 2026 with the flight status being En-Route on 00:17.
How else can the flight WN3665 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3665, WN 3665, SWA 3665.
How often is flight WN3665 delayed?
On average, 80% of all WN3665 flights are delayed. The average delay is 115 minutes.
Can I get compensation for my delayed or cancelled WN3665 flight or baggage issues?
If your WN3665 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 WN3665 Flight Tracker above for more details.
Claim compensation for your flight delay or cancellation!
Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >
Other flights departing from St. Louis STL: UA4526, WN512, WN454, WN4401
Other flights arriving at San Francisco SFO: UA454, AS3456, AS2037, UA1871
All flights connecting St. Louis STL to San Francisco SFO.