| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 19 | SEA | STL | 11:36 | 16:41 |
Landed
|
Track > |
| Jul 12 | SEA | STL | 11:28 | 16:45 |
Landed
|
Track > |
| Jul 05 | SEA | STL | 13:54 | 19:12 |
Delayed
|
Track > |
| Jun 28 | SEA | STL | 11:47 | 17:14 |
Landed Late
|
Track > |
| Jun 21 | SEA | STL | 11:23 | 16:38 |
Landed
|
Track > |
| Jun 14 | SEA | STL | 11:28 | 16:43 |
Landed
|
Track > |
| Jun 07 | SEA | STL | 11:51 | 17:11 |
Landed Late
|
Track > |
Southwest Airlines Flight WN140 connects Seattle, United States to St. Louis, United States, taking off from Seattle Tacoma International Airport SEA and landing at St. Louis Lambert International Airport STL.
How long is the WN140 flight from Seattle to St. Louis?
The average flight time from Seattle to St. Louis is 3 hours and 16 minutes. The flight distance is 2744 km / 1705 miles and the average flight speed is 838 km/h / 521 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN140 Seattle to St. Louis?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN140 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN140 arriving at?
Flight WN140 arrives at St. Louis Lambert International Airport (STL) Terminal 2.
When was the latest WN140 flight?
The latest flight took off on Sunday, July 19th, 2026 with the flight status being Landed on 16:41.
How else can the flight WN140 be referenced as?
This Southwest Airlines flight can also be referenced as SWA140, WN0140, WN 140, SWA 140.
How often is flight WN140 delayed?
On average, 43% of all WN140 flights are delayed. The average delay is 62 minutes.
Can I get compensation for my delayed or cancelled WN140 flight or baggage issues?
If your WN140 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 WN140 Flight Tracker above for more details.
Other flights departing from Seattle SEA: DL831, DL2880, F99336, UA757
Other flights arriving at St. Louis STL: WN1986, WN1844, WN473, WN189
All flights connecting Seattle SEA to St. Louis STL.