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WN4451 Flight Status Southwest Airlines: St. Louis to San Diego (SWA4451)

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WN 4451 St. Louis to San Diego Flight Status

Southwest Airlines Flight WN4451 from St. Louis Lambert International Airport STL to San Diego International Airport SAN is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on January 3rd, 2026.
Check the table below for WN4451's most recent flight history:

WN 4451 Flight Status & Schedule

Date Departure Arrival Status
Jan 03 19:19 20:53
Landed
 Track >
Dec 27 20:09 22:15
Delayed
 Track >
Dec 20 19:53 21:33
Landed Late
 Track >
Nov 29 19:36 21:24
Landed Late
 Track >
Nov 22 19:03 20:33
Landed
 Track >
< All STL Departures All SAN Arrivals >

Southwest Airlines WN 4451 St. Louis to San Diego Flight Information

Southwest Airlines Flight WN4451 connects St. Louis, United States to San Diego, United States, taking off from St. Louis Lambert International Airport STL and landing at San Diego International Airport SAN.

How long is the WN4451 flight from St. Louis to San Diego?

The average flight time from St. Louis to San Diego is 3 hours and 43 minutes. The flight distance is 2501 km / 1554 miles and the average flight speed is 673 km/h / 418 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4451 St. Louis to San Diego?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4451 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4451 arriving at?

Flight WN4451 arrives at San Diego International Airport (SAN) Terminal 1.

When was the latest WN4451 flight?

The latest flight took off on Sunday, January 4th, 2026 with the flight status being Landed on 20:53.

How else can the flight WN4451 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4451, WN 4451, SWA 4451.

How often is flight WN4451 delayed?

On average, 60% of all WN4451 flights are delayed. The average delay is 49 minutes.

Can I get compensation for my delayed or cancelled WN4451 flight or baggage issues?

If your WN4451 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 WN4451 Flight Tracker above for more details.

WN4451 and St. Louis STL to San Diego SAN Flights

Other flights departing from St. Louis STL: UA5523, DL3122, WN4426, WN3958

Other flights arriving at San Diego SAN: AA3122, WN4254, WN4684, WN1407

All flights connecting St. Louis STL to San Diego SAN.

WN4451 Southwest Airlines Flight: St. Louis to San Diego Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: RX2 FR5399 MW6447 MW6446 5F253 3T2808 MS3808 6K7024 QE760 4D1024
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Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.