| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 05 | SAN | DEN | 07:14 | 10:07 |
Landed
|
Track > |
| Mar 29 | SAN | DEN | 07:15 | 10:06 |
Landed
|
Track > |
| Mar 22 | SAN | DEN | 07:05 | 09:52 |
Landed
|
Track > |
| Mar 15 | SAN | DEN | 07:04 | 10:04 |
Landed
|
Track > |
| Mar 08 | SAN | DEN | 07:01 | 10:08 |
Landed
|
Track > |
Southwest Airlines Flight WN421 connects San Diego, United States to Denver, United States, taking off from San Diego International Airport SAN and landing at Denver International Airport DEN.
How long is the WN421 flight from San Diego to Denver?
The average flight time from San Diego to Denver is 1 hour and 55 minutes. The flight distance is 1371 km / 852 miles and the average flight speed is 714 km/h / 444 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN421 San Diego to Denver?
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.
When was the latest WN421 flight?
The latest flight took off on Sunday, April 5th, 2026 with the flight status being Landed on 10:07.
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, 0% of all WN421 flights are delayed. The average delay is 0 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 Diego SAN: WN3578, WN4595, WN2819, AA3227
Other flights arriving at Denver DEN: WN3772, WN2677, WN1397, WN2902
All flights connecting San Diego SAN to Denver DEN.