S$205 Cheap Flights from Las Vegas to Ontario

View S$205 flight on Thu, 14 Aug, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at S$205 for one-way flights and S$440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$440 Return, found 5 days ago
S$440
Return
found 5 days ago
Select Delta flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$440 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$441 Return, found 5 days ago
S$441
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$441 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$451 Return, found 5 days ago
S$451
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$451 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$452 Return, found 5 days ago
S$452
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$452 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$458 Return, found 5 days ago
S$458
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$458 found 5 days ago
Delta
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$468 Return, found 5 days ago
S$468
Return
found 5 days ago
Select Delta flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$468 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$473 Return, found 5 days ago
S$473
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$473 found 5 days ago
Delta
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$479 Return, found 5 days ago
S$479
Return
found 5 days ago
Select Delta flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$479 found 5 days ago
American Airlines
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$480 Return, found 5 days ago
S$480
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$480 found 5 days ago
United
Thu, 14 Aug - Mon, 18 Aug
LAS
Las Vegas
ONT
Ontario
S$484 Return, found 5 days ago
S$484
Return
found 5 days ago
Select United flight, departing Thu, 14 Aug from Las Vegas to Ontario, returning Mon, 18 Aug, priced at S$484 found 5 days ago

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

March is typically the cheapest month to fly

From S$61 - S$137 per traveller.

Graph displaying average flight prices per month

Las Vegas to Ontario route information
Origin airport
Harry Reid Intl.
Destination airport
Los Angeles - Ontario Intl.
Return price
S$440
Distance
314 km
Average flight time
1 hour 4 mins

Perfect flights from Las Vegas to Ontario

Your Journey from Las Vegas to Ontario

Start your unforgettable journey with Expedia. Our broad selection of flights from Las Vegas to Ontario 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 American Airlines, Delta, United. Our selection of flights from Harry Reid Intl. to Los Angeles - Ontario 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 Las Vegas to Ontario Flights

Experience the joy of finding cheap flights from Harry Reid Intl. to Los Angeles - Ontario Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$205 and roundtrip prices from S$440*.
 

Pre-Flight Essentials

Ensure a smooth journey from Las Vegas to Ontario 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 Ontario

Picture yourself stepping off the plane in Ontario 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 Las Vegas to Ontario 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 Las Vegas to Ontario.
 

Beyond the Flight – Exploring Ontario

With Expedia, your adventure extends beyond the flight. Explore Ontario 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 Las Vegas to Ontario 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 Las Vegas to Ontario with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from LAS to ONT?
The lowest price advertised for a round-trip journey from LAS to ONT is S$440. But you better get moving. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LAS to ONT?
This differs between air carriers, as each one has its own set of terms and conditions. Head to the Customer Service Portal, where there are easy instructions on how to cancel online.
How do I find cheap flights from LAS to ONT 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 LAS to ONT flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Harry Reid Airport (formerly McCarran Airport) to Ontario Airport?
With a flight distance of 320 kilometres, it's only a short hop from LAS to Los Angeles - Ontario Intl. Airport (ONT). It might be a quick flight, but it's still worth bringing along something to keep you entertained on board.
Which airlines fly direct from Harry Reid Airport (formerly McCarran Airport) to Ontario Airport?
Southwest Airlines (WN) is one of the top choices for many travellers flying between LAS and Los Angeles - Ontario Intl. Airport (ONT). Select from the 143 flights it operates on this route each month. If you're eager for more options, check out the fares from Frontier Airlines (F9). This carrier offers 56 flights a month between these airports.
Are LAS to Ontario Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from LAS to Ontario Airport can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out entirely! If you'd rather play it safe and start planning early, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines publish their prices that far in advance. Our top tip? Check back often as prices are updated regularly.

Explore a world of travel with Expedia

Ontario Airports

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S$124.40

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S$713.70
*Available to Expedia members.