| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 04 | DEN | SAT | 17:00 | 19:45 |
Landed
|
Track > |
| Mar 28 | DEN | SAT | 17:02 | 19:44 |
Landed
|
Track > |
| Mar 21 | DEN | SAT | 17:08 | 19:49 |
Landed
|
Track > |
| Mar 14 | DEN | SAT | 17:08 | 19:50 |
Landed
|
Track > |
| Mar 07 | DEN | SAT | 17:23 | 20:06 |
Landed
|
Track > |
Southwest Airlines Flight WN421 connects Denver, United States to San Antonio, United States, taking off from Denver International Airport DEN and landing at San Antonio International Airport SAT.
How long is the WN421 flight from Denver to San Antonio?
The average flight time from Denver to San Antonio is 1 hour and 42 minutes. The flight distance is 1280 km / 795 miles and the average flight speed is 749 km/h / 465 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN421 Denver to San Antonio?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN421 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN421 arriving at?
Flight WN421 arrives at San Antonio International Airport (SAT) Terminal A.
When was the latest WN421 flight?
The latest flight took off on Sunday, April 5th, 2026 with the flight status being Landed on 19:45.
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, 20% of all WN421 flights are delayed. The average delay is 1 minute.
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 Denver DEN: AM445, WN3605, DL1025, WN1477
Other flights arriving at San Antonio SAT: WN1797, AA1657, AA1270, VB676
All flights connecting Denver DEN to San Antonio SAT.