| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 27 | STL | SAT | 23:43 | 01:24 |
Delayed
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| Sep 20 | STL | SAT | 21:57 | 23:58 |
Landed Late
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| Sep 13 | STL | SAT | 22:18 | 00:07 |
Landed Late
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| Sep 06 | STL | SAT | 21:45 | 23:26 |
Delayed
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| Aug 30 | STL | SAT | 22:01 | 23:45 |
Landed Late
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| Aug 23 | STL | SAT | 21:35 | 23:16 |
Landed
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| Aug 16 | STL | SAT | 22:13 | 00:05 |
Landed Late
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| Aug 09 | STL | SAT | 22:05 | 23:49 |
Landed Late
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Southwest Airlines Flight WN4390 connects St. Louis, United States to San Antonio, United States, taking off from St. Louis Lambert International Airport STL and landing at San Antonio International Airport SAT.
How long is the WN4390 flight from St. Louis to San Antonio?
The average flight time from St. Louis to San Antonio is 1 hour and 46 minutes. The flight distance is 1266 km / 787 miles and the average flight speed is 715 km/h / 444 mph.
How many WN4390 flights are operated per week?
1 flight per week. The flight WN4390 is operated on Monday.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4390 St. Louis to San Antonio?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4390 is 4.2/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN4390 arriving at?
Flight WN4390 arrives at San Antonio International Airport (SAT) Terminal A.
When was the latest WN4390 flight?
The latest flight took off on Monday, September 28th, 2026 with the flight status being En-Route on 01:24.
How else can the flight WN4390 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4390, WN 4390, SWA 4390.
How often is flight WN4390 delayed?
On average, 87% of all WN4390 flights are delayed. The average delay is 52 minutes.
Can I get compensation for my delayed or cancelled WN4390 flight or baggage issues?
If your WN4390 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 WN4390 Flight Tracker above for more details.
Other flights departing from St. Louis STL: BA220, WN3955, WN3878, WN3543
Other flights arriving at San Antonio SAT: WN2276, WN2644, WN2819, AA450
All flights connecting St. Louis STL to San Antonio SAT.