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WN4821 Flight Status Southwest Airlines: San Francisco to Austin (SWA4821)

WN 4821 San Francisco to Austin Flight Status

Southwest Airlines Flight WN4821 from San Francisco International Airport SFO to Austin Bergstrom International Airport AUS is not scheduled for today August 18th, 2026.
The last time the flight was scheduled was on August 16th, 2026.
Check the table below for WN4821's most recent flight history:

WN 4821 Flight Status & Schedule

Date Departure Arrival Status
Aug 16 13:20 18:28
Delayed
 Track >
Aug 09 12:00 17:04
Landed
 Track >
< All SFO Departures All AUS Arrivals >

Southwest Airlines WN 4821 San Francisco to Austin Flight Information

Southwest Airlines Flight WN4821 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 WN4821 flight from San Francisco to Austin?

The average flight time from San Francisco to Austin is 3 hours and 6 minutes. The flight distance is 2416 km / 1501 miles and the average flight speed is 779 km/h / 484 mph.

How many WN4821 flights are operated per week?

1 flight per week. The flight WN4821 is operated on Sunday.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4821 San Francisco to Austin?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4821 is 4.2/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN4821 flight?

The latest flight took off on Sunday, August 16th, 2026 with the flight status being En-Route on 18:28.

How else can the flight WN4821 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4821, WN 4821, SWA 4821.

How often is flight WN4821 delayed?

On average, 100% of all WN4821 flights are delayed. The average delay is 51 minutes.

Can I get compensation for my delayed or cancelled WN4821 flight or baggage issues?

If your WN4821 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 WN4821 Flight Tracker above for more details.

WN4821 and San Francisco SFO to Austin AUS Flights

Other flights departing from San Francisco SFO: AC758, UA35, F94158, UA274

Other flights arriving at Austin AUS: DL1297, DL1643, WN4403, AA1146

All flights connecting San Francisco SFO to Austin AUS.

WN4821 Southwest Airlines Flight: San Francisco to Austin Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: AS1649 AS1595 AS1597 OO3136 AS1657 AS1660 FJ218 6E9049 2L8408 SV8764
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.