| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 31 | LAS | ONT | 17:20 | 17:55 |
Landed
|
Track > |
| May 17 | LAS | ONT | 17:27 | 18:05 |
Landed Late
|
Track > |
| May 10 | LAS | ONT | 17:34 | 18:08 |
Landed Late
|
Track > |
| May 03 | LAS | ONT | 16:53 | 18:01 |
Unknown
|
Track > |
| Apr 26 | LAS | ONT | 17:18 | 17:54 |
Landed
|
Track > |
| Apr 19 | LAS | ONT | 17:27 | 18:03 |
Landed
|
Track > |
| Apr 12 | LAS | ONT | 18:04 | 18:43 |
Delayed
|
Track > |
Southwest Airlines Flight WN3521 connects Las Vegas, United States to Ontario, United States, taking off from Las Vegas McCarran International Airport LAS and landing at Ontario International Airport ONT.
How long is the WN3521 flight from Las Vegas to Ontario?
The average flight time from Las Vegas to Ontario is 40 minutes. The flight distance is 317 km / 197 miles and the average flight speed is 489 km/h / 304 mph.
How many WN3521 flights are operated per week?
1 flight per week. The flight WN3521 is operated on Sunday.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3521 Las Vegas to Ontario?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3521 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN3521 arriving at?
Flight WN3521 arrives at Ontario International Airport (ONT) Terminal 4.
When was the latest WN3521 flight?
The latest flight took off on Monday, June 1st, 2026 with the flight status being Landed on 17:55.
How else can the flight WN3521 be referenced as?
This Southwest Airlines flight can also be referenced as SWA3521, WN 3521, SWA 3521.
How often is flight WN3521 delayed?
On average, 100% of all WN3521 flights are delayed. The average delay is 17 minutes.
Can I get compensation for my delayed or cancelled WN3521 flight or baggage issues?
If your WN3521 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 WN3521 Flight Tracker above for more details.
Other flights departing from Las Vegas LAS: WN1137, XE411, G42230, AA3286
Other flights arriving at Ontario ONT: CI24, UA1656, WN3932, UA5613
All flights connecting Las Vegas LAS to Ontario ONT.