WN 3999 Las Vegas to San Jose Flight Status

Southwest Airlines Flight WN3999 from Las Vegas McCarran International Airport LAS to San Jose International Airport SJC is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on April 5th, 2026.
Check the table below for WN3999's most recent flight history:

WN 3999 Flight Status & Schedule

Date Departure Arrival Status
Apr 05 17:59 18:58
Landed
Track >
Apr 01 18:12 19:22
Landed
Track >
Mar 31 18:21 19:34
Landed
Track >
Mar 29 17:45 18:48
Landed
Track >
Mar 25 18:08 19:07
Landed
Track >

Southwest Airlines WN 3999 Las Vegas to San Jose Flight Information

Southwest Airlines Flight WN3999 connects Las Vegas, United States to San Jose, United States, taking off from Las Vegas McCarran International Airport LAS and landing at San Jose International Airport SJC.

How long is the WN3999 flight from Las Vegas to San Jose?

The average flight time from Las Vegas to San Jose is 1 hour and 2 minutes. The flight distance is 620 km / 386 miles and the average flight speed is 603 km/h / 375 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3999 Las Vegas to San Jose?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3999 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3999 arriving at?

Flight WN3999 arrives at San Jose International Airport (SJC) Terminal B.

When was the latest WN3999 flight?

The latest flight took off on Monday, April 6th, 2026 with the flight status being Landed on 18:58.

How else can the flight WN3999 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3999, WN 3999, SWA 3999.

How often is flight WN3999 delayed?

On average, 10% of all WN3999 flights are delayed. The average delay is 19 minutes.

Can I get compensation for my delayed or cancelled WN3999 flight or baggage issues?

If your WN3999 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 WN3999 Flight Tracker above for more details.

WN3999 and Las Vegas LAS to San Jose SJC Flights

Other flights departing from Las Vegas LAS: WN1947, WN3023, AA2449, WN3564

Other flights arriving at San Jose SJC: WN1538, WN2790, WN4383, WN4048

All flights connecting Las Vegas LAS to San Jose SJC.

WN3999 Southwest Airlines Flight: Las Vegas to San Jose 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.