S$175 Cheap Flights from Ontario to Las Vegas

View S$175 flight on Sat, 17 May, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Ontario to Las Vegas (ONT-LAS)

Prices were available within the past 7 days and start at S$175 for one-way flights and S$480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 17 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$480 Return, found 4 days ago
S$480
Return
found 4 days ago
Select American Airlines flight, departing Sat, 17 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$480 found 4 days ago
American Airlines
Sat, 17 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$511 Return, found 4 days ago
S$511
Return
found 4 days ago
Select American Airlines flight, departing Sat, 17 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$511 found 4 days ago
American Airlines
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$581 Return, found 4 days ago
S$581
Return
found 4 days ago
Select American Airlines flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$581 found 4 days ago
Delta
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$590 Return, found 4 days ago
S$590
Return
found 4 days ago
Select Delta flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$590 found 4 days ago
American Airlines
Sat, 17 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$598 Return, found 4 days ago
S$598
Return
found 4 days ago
Select American Airlines flight, departing Sat, 17 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$598 found 4 days ago
American Airlines
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$612 Return, found 4 days ago
S$612
Return
found 4 days ago
Select American Airlines flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$612 found 4 days ago
Delta
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$621 Return, found 4 days ago
S$621
Return
found 4 days ago
Select Delta flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$621 found 4 days ago
United
Sat, 17 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$625 Return, found 4 days ago
S$625
Return
found 4 days ago
Select United flight, departing Sat, 17 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$625 found 4 days ago
Delta
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$636 Return, found 4 days ago
S$636
Return
found 4 days ago
Select Delta flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$636 found 4 days ago
American Airlines
Fri, 16 May - Sun, 18 May
ONT
Ontario
LAS
Las Vegas
S$641 Return, found 4 days ago
S$641
Return
found 4 days ago
Select American Airlines flight, departing Fri, 16 May from Ontario to Las Vegas, returning Sun, 18 May, priced at S$641 found 4 days ago
Ontario to Las Vegas route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Harry Reid Intl.
Return price
S$479
Distance
314 km

Flights from Los Angeles to Las Vegas

When looking for plane tickets from Los Angeles to Las Vegas, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, Expedia gives you the widest array of cheap flights to Las Vegas. Look for ONT to LAS airfare with the assurance that you have the largest online travel agency working for you.

Expedia lets you search across the largest number of airlines and Las Vegas flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Los Angeles Las Vegas flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Los Angeles to Las Vegas trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Las Vegas flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Los Angeles to Las Vegas with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Ontario Airport to LAS?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight between Ontario Airport and LAS was S$480. Cheap fares don’t stick around for long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Ontario Airport to Harry Reid Airport (formerly McCarran Airport)?
This can vary between air carriers, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are easy-to-follow instructions on how to cancel online.
How do I find cheap flights from ONT to Harry Reid Airport (formerly McCarran Airport) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Ontario Airport to LAS flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from ONT to LAS?
It’s just 320 kilometres between Ontario and Las Vegas. It’s quite possible that you’ll spend more time travelling to and from the airport than you will actually flying!
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport)?
Southwest Airlines (WN) is one of the preferred choices for travellers jetting between Ontario Airport and LAS. Take your pick of the 143 flights it operates on this route each month. Frontier Airlines (F9) is also worth considering. It offers 56 flights every month. Between these two airlines, you’ll be able to find a great deal from Ontario to Las Vegas.
Are Los Angeles - Ontario Intl. Airport (ONT) to Harry Reid Airport (formerly McCarran Airport) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from ONT to Harry Reid Airport (formerly McCarran Airport) at the last minute could be your ticket to a great deal. However, it could end up costing you a whole lot more! If you’d prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn’t released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Las Vegas
S$128.80

Orange County

John Wayne to Las Vegas
S$157.30

Burbank

Hollywood Burbank to Las Vegas
S$408.20
*Available to Expedia members.