| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 01 | SFO | AUS | 13:29 | 18:30 |
Delayed
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| Sep 30 | SFO | AUS | 12:58 | 18:03 |
Landed Late
|
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| Sep 29 | SFO | AUS | 14:11 | 19:13 |
Delayed
|
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| Sep 28 | SFO | AUS | 11:09 | 16:15 |
Landed Late
|
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| Sep 27 | SFO | AUS | 13:12 | 18:30 |
Landed Late
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| Sep 26 | SFO | AUS | 13:21 | 18:33 |
Landed
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| Sep 25 | SFO | AUS | 13:41 | 18:43 |
Landed Late
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| Sep 24 | SFO | AUS | 12:25 | 17:27 |
Landed
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| Sep 23 | SFO | AUS | 12:13 | 17:17 |
Landed
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| Sep 22 | SFO | AUS | 13:22 | 18:22 |
Landed
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Southwest Airlines Flight WN421 connects San Francisco, United States to Austin, United States, taking off from San Francisco International Airport SFO and landing at Austin Bergstrom International Airport AUS.
How long is the WN421 flight from San Francisco to Austin?
The average flight time from San Francisco to Austin is 3 hours and 5 minutes. The flight distance is 2416 km / 1501 miles and the average flight speed is 783 km/h / 487 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN421 San Francisco to Austin?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN421 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN421 arriving at?
Flight WN421 arrives at Austin Bergstrom International Airport (AUS) Terminal C.
When was the latest WN421 flight?
The latest flight took off on Wednesday, October 1st, 2025 with the flight status being En-Route on 18:30.
How else can the flight WN421 be referenced as?
This Southwest Airlines flight can also be referenced as SWA421, WN0421, WN 421, SWA 421.
How often is flight WN421 delayed?
On average, 70% of all WN421 flights are delayed. The average delay is 26 minutes.
Can I get compensation for my delayed or cancelled WN421 flight or baggage issues?
If your WN421 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 WN421 Flight Tracker above for more details.
Other flights departing from San Francisco SFO: AS2147, WN1166, AA2428, WN1322
Other flights arriving at Austin AUS: WN2636, WN1129, WN3941, WN726
All flights connecting San Francisco SFO to Austin AUS.
