| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 04 | LAS | ONT | 16:20 | 17:00 |
Landed Late
|
Track > |
| Jan 02 | LAS | ONT | 15:51 | 16:28 |
Landed
|
Track > |
| Dec 30 | LAS | ONT | 16:09 | 16:45 |
Landed
|
Track > |
| Dec 29 | LAS | ONT | 15:52 | 16:34 |
Landed
|
Track > |
| Dec 28 | LAS | ONT | 15:59 | 16:39 |
Landed
|
Track > |
| Dec 26 | LAS | ONT | 16:02 | 16:41 |
Landed
|
Track > |
| Dec 23 | LAS | ONT | 16:08 | 16:53 |
Landed
|
Track > |
| Dec 22 | LAS | ONT | 16:07 | 16:44 |
Landed
|
Track > |
| Dec 21 | LAS | ONT | 16:08 | 16:46 |
Landed
|
Track > |
| Dec 19 | LAS | ONT | 16:44 | 17:22 |
Landed Late
|
Track > |
Southwest Airlines Flight WN4540 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 WN4540 flight from Las Vegas to Ontario?
The average flight time from Las Vegas to Ontario is 39 minutes. The flight distance is 317 km / 197 miles and the average flight speed is 487 km/h / 302 mph.
What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4540 Las Vegas to Ontario?
The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4540 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight WN4540 arriving at?
Flight WN4540 arrives at Ontario International Airport (ONT) Terminal 4.
When was the latest WN4540 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 17:00.
How else can the flight WN4540 be referenced as?
This Southwest Airlines flight can also be referenced as SWA4540, WN 4540, SWA 4540.
How often is flight WN4540 delayed?
On average, 40% of all WN4540 flights are delayed. The average delay is 15 minutes.
Can I get compensation for my delayed or cancelled WN4540 flight or baggage issues?
If your WN4540 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 WN4540 Flight Tracker above for more details.
Other flights departing from Las Vegas LAS: DL403, WN1556, NK1900, DL8800
Other flights arriving at Ontario ONT: AS1412, DL3834, WN2969, WN4373
All flights connecting Las Vegas LAS to Ontario ONT.