| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 04 | SEA | STL | 12:21 | 17:42 |
Landed Late
|
Track > |
| Aug 03 | SEA | STL | 09:49 | 15:09 |
Landed
|
Track > |
| Aug 02 | SEA | STL | 10:02 | 15:22 |
Landed Late
|
Track > |
| Aug 01 | SEA | STL | 11:34 | 17:02 |
Landed
|
Track > |
| Jul 31 | SEA | STL | 12:26 | 17:58 |
Delayed
|
Track > |
| Jul 30 | SEA | STL | 12:10 | 17:34 |
Landed
|
Track > |
| Jul 29 | SEA | STL | 12:36 | 17:58 |
Landed Late
|
Track > |
| Jul 28 | SEA | STL | 12:49 | 18:19 |
Delayed
|
Track > |
| Jul 27 | SEA | STL | 09:51 | 15:16 |
Landed
|
Track > |
| Jul 26 | SEA | STL | 09:06 | 14:33 |
Landed
|
Track > |
Southwest Airlines Flight WN1242 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 WN1242 flight from Seattle to St. Louis?
The average flight time from Seattle to St. Louis is 3 hours and 24 minutes. The flight distance is 2744 km / 1705 miles and the average flight speed is 804 km/h / 500 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN1242 Seattle to St. Louis?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN1242 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN1242 arriving at?
Flight WN1242 arrives at St. Louis Lambert International Airport (STL) Terminal 2.
When was the latest WN1242 flight?
The latest flight took off on Monday, August 4th, 2025 with the flight status being Landed on 17:42.
How else can the flight WN1242 be referenced as?
This Southwest Airlines flight can also be referenced as SWA1242, WN 1242, SWA 1242.
How often is flight WN1242 delayed?
On average, 70% of all WN1242 flights are delayed. The average delay is 40 minutes.
Can I get compensation for my delayed or cancelled WN1242 flight or baggage issues?
If your WN1242 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 WN1242 Flight Tracker above for more details.
Other flights departing from Seattle SEA: DL3589, AA1672, WN1514, DL3695
Other flights arriving at St. Louis STL: WN4719, WN4247, AA2554, WN2626
All flights connecting Seattle SEA to St. Louis STL.
