| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | MDW | SEA | 22:12 | 00:19 |
Landed
|
Track > |
| Apr 05 | MDW | SEA | 21:54 | 00:02 |
Landed
|
Track > |
| Apr 04 | MDW | SEA | 22:37 | 00:36 |
Landed Late
|
Track > |
| Apr 03 | MDW | SEA | 01:54 | 04:03 |
Delayed
|
Track > |
| Apr 02 | MDW | SEA | 01:45 | 03:57 |
Delayed
|
Track > |
| Apr 01 | MDW | SEA | 21:26 | 23:23 |
Landed
|
Track > |
| Mar 31 | MDW | SEA | 22:14 | 00:12 |
Landed Late
|
Track > |
| Mar 30 | MDW | SEA | 22:17 | 00:41 |
Landed
|
Track > |
| Mar 29 | MDW | SEA | 22:57 | 01:20 |
Delayed
|
Track > |
| Mar 28 | MDW | SEA | 22:00 | 00:10 |
Landed
|
Track > |
Southwest Airlines Flight WN3640 connects Chicago, United States to Seattle, United States, taking off from Chicago Midway International Airport MDW and landing at Seattle Tacoma International Airport SEA.
How long is the WN3640 flight from Chicago to Seattle?
The average flight time from Chicago to Seattle is 4 hours and 8 minutes. The flight distance is 2782 km / 1729 miles and the average flight speed is 672 km/h / 418 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3640 Chicago to Seattle?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3640 is 4.1/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3640 arriving at?
Flight WN3640 arrives at Seattle Tacoma International Airport (SEA) Terminal 2.
When was the latest WN3640 flight?
The latest flight took off on Tuesday, April 7th, 2026 with the flight status being Landed on 00:19.
How else can the flight WN3640 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3640, WN 3640, SWA 3640.
How often is flight WN3640 delayed?
On average, 60% of all WN3640 flights are delayed. The average delay is 88 minutes.
Can I get compensation for my delayed or cancelled WN3640 flight or baggage issues?
If your WN3640 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 WN3640 Flight Tracker above for more details.
Other flights departing from Chicago MDW: WN3869, WN3998, WN4009, WN3976
Other flights arriving at Seattle SEA: AA3142, AA2647, WN2080, WN1346
All flights connecting Chicago MDW to Seattle SEA.