| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 01 | LAS | SEA | 21:34 | 23:49 |
Landed
|
Track > |
| Mar 31 | LAS | SEA | 21:47 | 23:54 |
Landed
|
Track > |
| Mar 25 | LAS | SEA | 21:40 | 23:46 |
Landed
|
Track > |
| Mar 24 | LAS | SEA | 21:39 | 23:41 |
Landed
|
Track > |
| Mar 18 | LAS | SEA | 23:27 | 01:34 |
Delayed
|
Track > |
| Mar 17 | LAS | SEA | 21:49 | 23:59 |
Landed
|
Track > |
| Mar 11 | LAS | SEA | 21:49 | 00:06 |
Landed
|
Track > |
| Mar 10 | LAS | SEA | 21:42 | 00:03 |
Landed
|
Track > |
Southwest Airlines Flight WN399 connects Las Vegas, United States to Seattle, United States, taking off from Las Vegas McCarran International Airport LAS and landing at Seattle Tacoma International Airport SEA.
How long is the WN399 flight from Las Vegas to Seattle?
The average flight time from Las Vegas to Seattle is 2 hours and 10 minutes. The flight distance is 1395 km / 867 miles and the average flight speed is 642 km/h / 399 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN399 Las Vegas to Seattle?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN399 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN399 arriving at?
Flight WN399 arrives at Seattle Tacoma International Airport (SEA) Terminal 2.
When was the latest WN399 flight?
The latest flight took off on Thursday, April 2nd, 2026 with the flight status being Landed on 23:49.
How else can the flight WN399 be referenced as?
This Southwest Airlines flight can also be referenced as SWA399, WN0399, WN 399, SWA 399.
How often is flight WN399 delayed?
On average, 12% of all WN399 flights are delayed. The average delay is 74 minutes.
Can I get compensation for my delayed or cancelled WN399 flight or baggage issues?
If your WN399 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 WN399 Flight Tracker above for more details.
Other flights departing from Las Vegas LAS: WN2953, WN3296, WN3623, WN186
Other flights arriving at Seattle SEA: AA2363, WN3640, AA3142, WN3266
All flights connecting Las Vegas LAS to Seattle SEA.