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WN 4429 St. Louis to San Juan Flight Status

Southwest Airlines Flight WN4429 from St. Louis Lambert International Airport STL to San Juan Luis Munoz Marin International Airport SJU 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 WN4429's most recent flight history:

WN 4429 Flight Status & Schedule

Date Departure Arrival Status
Jan 03 11:35 17:55
Cancelled
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Dec 27 12:16 18:42
Landed Late
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Dec 20 11:53 18:08
Landed
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Nov 29 12:08 18:04
Landed
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Nov 22 11:47 17:46
Landed
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Southwest Airlines WN 4429 St. Louis to San Juan Flight Information

Southwest Airlines Flight WN4429 connects St. Louis, United States to San Juan, Puerto Rico, taking off from St. Louis Lambert International Airport STL and landing at San Juan Luis Munoz Marin International Airport SJU.

How long is the WN4429 flight from St. Louis to San Juan?

The average flight time from St. Louis to San Juan is 4 hours and 9 minutes. The flight distance is 3260 km / 2026 miles and the average flight speed is 780 km/h / 485 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4429 St. Louis to San Juan?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4429 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4429 arriving at?

Flight WN4429 arrives at San Juan Luis Munoz Marin International Airport (SJU) Terminal B.

When was the latest WN4429 flight?

The latest flight was scheduled for Saturday, January 3rd, 2026 but was cancelled.

How else can the flight WN4429 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4429, WN 4429, SWA 4429.

How often is flight WN4429 delayed?

On average, 60% of all WN4429 flights are delayed. The average delay is 23 minutes.

Can I get compensation for my delayed or cancelled WN4429 flight or baggage issues?

If your WN4429 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 WN4429 Flight Tracker above for more details.

WN4429 Flight Delay Compensation up to 600€!

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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 >

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WN4429 and St. Louis STL to San Juan SJU Flights

Other flights departing from St. Louis STL: WN2711, DL5361, WN3416, JL2828

Other flights arriving at San Juan SJU: WN4278, WN993, 9K8261, 9K2861

All flights connecting St. Louis STL to San Juan SJU.

WN4429 Southwest Airlines Flight: St. Louis to San Juan Route Map

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Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.