WN 3931 San Juan to St. Louis Flight Status

Southwest Airlines Flight WN3931 from San Juan Luis Munoz Marin International Airport SJU to St. Louis Lambert International Airport STL is not scheduled for today June 16th, 2026.
The last time the flight was scheduled was on June 13th, 2026.
Check the table below for WN3931's most recent flight history:

WN 3931 Flight Status & Schedule

Date Departure Arrival Status
Jun 13 15:50 19:08
Landed
Track >
Jun 06 15:54 19:16
Landed
Track >

Southwest Airlines WN 3931 San Juan to St. Louis Flight Information

Southwest Airlines Flight WN3931 connects San Juan, Puerto Rico to St. Louis, United States, taking off from San Juan Luis Munoz Marin International Airport SJU and landing at St. Louis Lambert International Airport STL.

How long is the WN3931 flight from San Juan to St. Louis?

The average flight time from San Juan to St. Louis is 4 hours and 20 minutes. The flight distance is 3260 km / 2026 miles and the average flight speed is 752 km/h / 467 mph.

How many WN3931 flights are operated per week?

1 flight per week. The flight WN3931 is operated on Saturday.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3931 San Juan to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3931 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3931 arriving at?

Flight WN3931 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN3931 flight?

The latest flight took off on Sunday, June 14th, 2026 with the flight status being Landed on 19:08.

How else can the flight WN3931 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3931, WN 3931, SWA 3931.

How often is flight WN3931 delayed?

On average, 50% of all WN3931 flights are delayed. The average delay is 6 minutes.

Can I get compensation for my delayed or cancelled WN3931 flight or baggage issues?

If your WN3931 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 WN3931 Flight Tracker above for more details.

WN3931 and San Juan SJU to St. Louis STL Flights

Other flights departing from San Juan SJU: B61004, B6808, F92265, AA783

Other flights arriving at St. Louis STL: AS647, WN1986, AA5309, WN4895

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

WN3931 Southwest Airlines Flight: San Juan to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.