Cheap Flight Tickets from Ontario (ONT) to Las Vegas (LAS), Starting at $145

Good to Know: Cheapest and Fastest ONT - LAS Flights

Useful information for finding best airline tickets from Ontario International to McCarran International on your next trip.

Cheapest Round Trip Flight

$173

WN Southwest Airlines • 1 stop • 5h 25m

Oct 11 – Oct 18

The cheapest round trip flight from Ontario to Las Vegas (ONT-LAS-ONT) is currently $173

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Cheapest One way Flight

$214

F9 Frontier Airlines • nonstop • 1h 49m

Oct 17

The cheapest one way flight from Ontario to Las Vegas (ONT-LAS) is currently $214

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Cheapest Direct Flight

$145

WN Southwest Airlines • nonstop • 1h 55m

Oct 10

The cheapest nonstop flight from Ontario to Las Vegas (ONT-LAS) is currently $145

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Fastest Flight

1h 40m

The fastest nonstop flight from Ontario to Las Vegas (ONT-LAS) takes 1h 40m

Top Airlines Flying from Ontario to Las Vegas

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Ontario (ONT) to Las Vegas (LAS)

Compare and book low fare round-trip air tickets from Ontario to Las Vegas. Ideal for travelers with confirmed return itineraries.

Oct 11 - Oct 18, Economy
WN
Ontario → Las Vegas
5h 25m
5:10 PM - 8:35 PM • 1 stop
WN
Ontario → Las Vegas
5h 40m
5:40 AM - 9:20 AM • 1 stop
$173
Southwest Airlines
Oct 11 - Oct 18, Economy
WN
Ontario → Las Vegas
7h 25m
5:10 PM - 9:55 PM • 1 stop
WN
Ontario → Las Vegas
5h 40m
5:40 AM - 9:20 AM • 1 stop
$173
Southwest Airlines
Oct 11 - Oct 18, Economy
AS
Ontario → Las Vegas
12h 20m
11:13 AM - 7:53 PM • 1 stop
AS
Ontario → Las Vegas
13h 34m
6:02 AM - 1:16 PM • 1 stop
$290
Alaska Airlines
Oct 11 - Oct 18, Economy
UA
Ontario → Las Vegas
6h 50m
6:07 AM - 10:17 AM • 1 stop
UA
Ontario → Las Vegas
7h 36m
5:55 PM - 10:51 PM • 1 stop
$351
United Airlines
Oct 10 - Oct 17, Economy
AS
Ontario → Las Vegas
10h 47m
- • 1 stop
AS
Ontario → Las Vegas
10h 14m
- • 1 stop
$1269
Alaska Airlines
Oct 10 - Oct 17, Economy
F9
Ontario → Las Vegas
1h 49m
6:15 AM - 4:00 PM • 1 stop
F9
Ontario → Las Vegas
45h 5m
1:38 PM - 11:50 PM • 1 stop
$2031
Frontier Airlines

Fly from Ontario to Las Vegas with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Las Vegas? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Las Vegas Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to LAS?
The most popular airline flying from Ontario to Las Vegas are
Can I fly from ONT to LAS non-stop?
Yes, you can fly ONT to LAS non-stop on
Which airlines fly nonstop between Ontario and Las Vegas?
The non-stop flights between Ontario and Las Vegas are .
What’s the earliest departure time from ONT to LAS Airport?
The earliest flight leaves ONT at 6:07 am and lands in LAS - McCarran International
What are the airports in Las Vegas?
LAS
Can I make changes to my Ontario to Las Vegas flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to LAS?
Read the fare rules of the Ontario to Las Vegas air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Las Vegas?
operate flights between Ontario and Las Vegas
How long does a flight from Ontario to Las Vegas take?
It takes approximately 1 hour to fly non-stop from ONT to LAS, which is 196.8 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Las Vegas (LAS) ?
In the past couple of days, the cheapest tickets to LAS from ONT were found on AS : USD 662
Do I need a passport to fly between ONT and LAS?
No
What’s the latest departure time from ONT to LAS ?
The last flight leaves ONT at 2:1300 pm

Ontario (ONT) to Las Vegas (LAS): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport McCarran International , Las Vegas, US
Distance 197 miles

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