| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 01 | SJC | SEA | 07:18 | 08:51 |
Landed
|
Track > |
| Sep 30 | SJC | SEA | 07:14 | 08:54 |
Landed
|
Track > |
| Sep 29 | SJC | SEA | 17:32 | 19:10 |
Landed
|
Track > |
| Sep 28 | SJC | SEA | 07:46 | 09:25 |
Landed
|
Track > |
| Sep 27 | SJC | SEA | 06:55 | 08:32 |
Landed
|
Track > |
| Sep 26 | SJC | SEA | 17:47 | 19:33 |
Landed
|
Track > |
| Sep 25 | SJC | SEA | 17:57 | 19:38 |
Landed
|
Track > |
| Sep 24 | SJC | SEA | 07:20 | 08:55 |
Landed
|
Track > |
| Sep 23 | SJC | SEA | 07:17 | 08:57 |
Landed
|
Track > |
| Sep 22 | SJC | SEA | 17:33 | 19:18 |
Landed
|
Track > |
Southwest Airlines Flight WN4509 connects San Jose, United States to Seattle, United States, taking off from San Jose International Airport SJC and landing at Seattle Tacoma International Airport SEA.
How long is the WN4509 flight from San Jose to Seattle?
The average flight time from San Jose to Seattle is 1 hour and 39 minutes. The flight distance is 1122 km / 697 miles and the average flight speed is 678 km/h / 421 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4509 San Jose to Seattle?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4509 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN4509 arriving at?
Flight WN4509 arrives at Seattle Tacoma International Airport (SEA) Terminal B.
When was the latest WN4509 flight?
The latest flight took off on Wednesday, October 1st, 2025 with the flight status being Landed on 08:51.
How else can the flight WN4509 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4509, WN 4509, SWA 4509.
How often is flight WN4509 delayed?
On average, 20% of all WN4509 flights are delayed. The average delay is 5 minutes.
Can I get compensation for my delayed or cancelled WN4509 flight or baggage issues?
If your WN4509 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 WN4509 Flight Tracker above for more details.
Other flights departing from San Jose SJC: WN3623, WN4289, WN2965, WN329
Other flights arriving at Seattle SEA: AA3334, AS604, AS735, WN1150
All flights connecting San Jose SJC to Seattle SEA.
