S$196 Cheap Flights from Ontario to Las Vegas

View S$196 flight on Sun, 31 May, 2026Opens in a new window

Flight 1

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

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

Prices were available within the past 7 days and start at S$196 for one-way flights and S$392 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$392 Return, found 12 hours ago
S$392
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$392 found 12 hours ago
United
Fri, 24 Apr - Mon, 27 Apr
ONT
Ontario
LAS
Las Vegas
S$439 Return, found 13 hours ago
S$439
Return
found 13 hours ago
Select United flight, departing Fri, 24 Apr from Ontario to Las Vegas, returning Mon, 27 Apr, priced at S$439 found 13 hours ago
United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$483 Return, found 12 hours ago
S$483
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$483 found 12 hours ago
United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$503 Return, found 12 hours ago
S$503
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$503 found 12 hours ago
United
Fri, 24 Apr - Mon, 27 Apr
ONT
Ontario
LAS
Las Vegas
S$511 Return, found 13 hours ago
S$511
Return
found 13 hours ago
Select United flight, departing Fri, 24 Apr from Ontario to Las Vegas, returning Mon, 27 Apr, priced at S$511 found 13 hours ago
United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$548 Return, found 12 hours ago
S$548
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$548 found 12 hours ago
United
Fri, 24 Apr - Mon, 27 Apr
ONT
Ontario
LAS
Las Vegas
S$567 Return, found 13 hours ago
S$567
Return
found 13 hours ago
Select United flight, departing Fri, 24 Apr from Ontario to Las Vegas, returning Mon, 27 Apr, priced at S$567 found 13 hours ago
United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$572 Return, found 12 hours ago
S$572
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$572 found 12 hours ago
United
Sun, 31 May - Thu, 4 Jun
ONT
Ontario
LAS
Las Vegas
S$574 Return, found 12 hours ago
S$574
Return
found 12 hours ago
Select United flight, departing Sun, 31 May from Ontario to Las Vegas, returning Thu, 4 Jun, priced at S$574 found 12 hours ago
American Airlines
Fri, 24 Apr - Mon, 27 Apr
ONT
Ontario
LAS
Las Vegas
S$587 Return, found 13 hours ago
S$587
Return
found 13 hours ago
Select American Airlines flight, departing Fri, 24 Apr from Ontario to Las Vegas, returning Mon, 27 Apr, priced at S$587 found 13 hours ago

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Find the cheapest month to fly from Ontario (ONT) to Las Vegas (LAS)

October is typically the cheapest month to fly

From S$62 - S$114 per traveller.

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$392. 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.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Harry Reid Intl.
Return price
S$392
Distance
314 km
Average flight time
1 hour 8 mins

Book with confidence

Perfect flights from Ontario to Las Vegas

Your Journey from Ontario to Las Vegas

Start your unforgettable journey with Expedia. Our broad selection of flights from Ontario to Las Vegas caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including United, American Airlines. Our selection of flights from Los Angeles - Ontario Intl. to Harry Reid Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Ontario to Las Vegas Flights

Experience the joy of finding cheap flights from Los Angeles - Ontario Intl. to Harry Reid Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$196 and roundtrip prices from S$392*.
 

Pre-Flight Essentials

Ensure a smooth journey from Ontario to Las Vegas with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Las Vegas

Picture yourself stepping off the plane in Las Vegas and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Ontario to Las Vegas Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Ontario to Las Vegas.
 

Beyond the Flight – Exploring Las Vegas

With Expedia, your adventure extends beyond the flight. Explore Las Vegas at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Ontario to Las Vegas with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Ontario to Las Vegas with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Ontario to Las Vegas

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Las Vegas
S$170.80

Burbank

Hollywood Burbank to Las Vegas
S$320.70

Orange County

John Wayne to Las Vegas
S$327.70
*Available to Expedia members.