HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$55+ Cheap flights from Las Vegas (LAS) to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
Apr 15 — Apr 221
Tue 4/15
Tue 4/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Las Vegas to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Las Vegas to Ontario

Keep the following information in mind while searching for Las Vegas to Ontario flight deals. Data was last updated April 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$154
(Kiwi.com)

One-way from

$55
(Cheapflightsfares)

Popular in

July

Cheapest in

February

Average price

$232

Good round-trip deal

$200 or less

Good one-way deal

$100 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Toronto (YTO) flights.
Search Deals
From Las Vegas Harry Reid Intl to Ontario
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Ontario.
Search Deals
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Ontario.
Search Deals

Find flight deals from Las Vegas to Ontario

Cheapest flights from Las Vegas to Ontario
Explore the most affordable flight options available from Las Vegas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/138:00 amLAS - YYZ
2 stops13h 35mWestJet
Tue 6/1711:00 amYYZ - LAS
1 stop9h 35mWestJet
Deal found 4/9$154
This Mytrip deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1510:35 pmLAS - YYZ
Nonstop4h 20mPorter Airlines
Wed 4/232:00 pmYYZ - LAS
1 stop9h 40mPorter Airlines
Deal found 4/8$158
This Air Canada deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:10 pmLAS - YYZ
Nonstop4h 19mAir Canada
Wed 4/238:10 pmYYZ - LAS
Nonstop4h 57mAir Canada
Deal found 4/8$161
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/241:25 pmLAS - YYZ
2 stops13h 26mMultiple Airlines
Tue 7/17:00 amYYZ - LAS
Nonstop4h 53mMultiple Airlines
Deal found 4/9$165
This Trip.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:10 amLAS - YTZ
1 stop7h 17mPorter Airlines
Sun 5/47:00 amYTZ - LAS
1 stop7h 25mPorter Airlines
Deal found 4/9$175
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1412:59 amLAS - YYZ
1 stop7h 31mUnited Airlines
Wed 4/2312:25 pmYYZ - LAS
1 stop8h 42mUnited Airlines
Deal found 4/8$186
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:30 pmLAS - YTZ
2 stops17h 57mMultiple Airlines
Sun 5/47:00 amYTZ - LAS
1 stop7h 25mMultiple Airlines
Deal found 4/9$227
This Justfly.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2010:00 amLAS - YKF
2 stops11h 46mWestJet
Wed 7/236:00 amYKF - LAS
1 stop14h 35mWestJet
Deal found 4/9$231
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/512:59 amLAS - YYZ
1 stop8h 31mAmerican Airlines
Thu 5/811:45 amYYZ - LAS
1 stop12h 35mAmerican Airlines
Deal found 4/9$234
This Air Canada deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:00 amLAS - YTZ
1 stop11h 35mAir Canada
Wed 4/2310:25 amYTZ - LAS
1 stop14h 12mAir Canada
Deal found 4/10$235
This Trip.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1112:35 pmLAS - YUL
1 stop9h 02mWestJet
Sun 6/157:00 amYUL - LAS
2 stops16h 21mWestJet
Deal found 4/9$248
This Mytrip deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2510:35 pmLAS - YUL
1 stop7h 25mMultiple Airlines
Mon 4/286:45 amYUL - LAS
1 stop7h 54mMultiple Airlines
Deal found 4/9$254

Cheapflights Fare Finder

Customize your flight search to find flights from Las Vegas to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2025.
Use the filters below to find and compare flights from Las Vegas to Ontario that are best for you.

Fly from

Las Vegas

Fly to

Ontario

Route

Depart

Return

Price

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 5/13

8:00 am-12:35 am

2 stops13h 35m

Toronto Pearson Intl

Tue 6/17

11:00 am-5:35 pm

1 stop9h 35m

$154

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 4/15

10:35 pm-5:55 am

Nonstop4h 20m

Toronto Pearson Intl

Wed 4/23

2:00 pm-8:40 pm

1 stop9h 40m

$158

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 4/15

11:10 pm-6:29 am

Nonstop4h 19m

Toronto Pearson Intl

Wed 4/23

8:10 pm-10:07 pm

Nonstop4h 57m

$161

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 4/14

12:59 am-2:10 pm

1 stop10h 11m

Toronto Pearson Intl

Wed 4/23

8:10 pm-10:07 pm

Nonstop4h 57m

$170

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Thu 5/1

9:10 am-7:27 pm

1 stop7h 17m

Toronto Island

Sun 5/4

7:00 am-11:25 am

1 stop7h 25m

$175

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 4/14

12:59 am-11:30 am

1 stop7h 31m

Toronto Pearson Intl

Wed 4/23

12:25 pm-6:07 pm

1 stop8h 42m

$186

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Thu 5/1

7:30 pm-4:27 pm

2 stops17h 57m

Toronto Island

Sun 5/4

7:00 am-11:25 am

1 stop7h 25m

$227

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Sun 7/20

10:00 am-12:46 am

2 stops11h 46m

Toronto Region of Waterloo Intl

Wed 7/23

6:00 am-5:35 pm

1 stop14h 35m

$231

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 5/5

12:59 am-12:30 pm

1 stop8h 31m

Toronto Pearson Intl

Thu 5/8

11:45 am-9:20 pm

1 stop12h 35m

$234

Las VegasMontreal

LAS - YUL

LASYUL

Las Vegas Harry Reid Intl

Wed 6/11

12:35 pm-12:37 am

1 stop9h 02m

Montreal Pierre Elliott Trudeau Intl

Sun 6/15

7:00 am-8:21 pm

2 stops16h 21m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 56 results
1
2
3
...
6

Best time to book a flight from Las Vegas to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Las Vegas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to Ontario

What is the cheapest month to book a flight from Las Vegas to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Region of Ontario (average of $243). Flying from Las Vegas to Region of Ontario in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LAS to ON?

Find hourly flight availability from Las Vegas to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Las Vegas to Region of Ontario as you normally would.

Weekly flight availability from Las Vegas to Region of Ontario

Explore weekly flight availability from Las Vegas to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 10, 2025.

The most flights from LAS to CAON are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated April 10, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Porter Airlines and Delta from Las Vegas to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,848 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Porter Airlines
8.0
Very good
280 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,907 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Air Transat
7.8
Good
384 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Aeromexico
7.5
Good
1,700 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Food

7.1

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Las Vegas to Ontario?

    Located just 6.2 mi from the city center, Las Vegas Harry Reid Intl (LAS) is the airport most travelers will use when flying to Ontario from Las Vegas.

  • What are the cheapest airlines to fly from Las Vegas to Region of Ontario one-way?

    The cheapest airlines for a one-way flight from Las Vegas to Region of Ontario are Porter Airlines ($55), United Airlines ($63), and WestJet ($65).

  • What are the most popular routes from Las Vegas to Region of Ontario?

    The most popular flight routes from Las Vegas to Region of Ontario are Las Vegas Harry Reid Intl - Toronto Pearson Intl, Las Vegas Harry Reid Intl - Montreal Pierre Elliott Trudeau Intl and Las Vegas Harry Reid Intl - Toronto Region of Waterloo Intl.

  • What are the most reliable airlines from Las Vegas to Region of Ontario?

    Consider Air Canada Rouge (81%), Delta (65%) or WestJet (65%) when booking your flight. These represent the most reliable airlines when flying from Las Vegas to Region of Ontario.

  • What are the cheapest flights from Las Vegas to Region of Ontario?

    While on average a flight from Las Vegas to Region of Ontario is generally $1,085, our data shows the cheapest flight currently is $48. When looking at the most popular route, (Las Vegas Harry Reid Intl - Toronto Pearson Intl), you can expect to pay $159 for that flight.

  • Can I find deals for flights from Las Vegas to Ontario that include hotel bookings?

    Yes. In addition to deals on Las Vegas to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Ontario.

  • Can I find deals for business class flights from Las Vegas to Ontario?

    Yes. Cheapflights offers flight deals from Las Vegas to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Las Vegas to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Region of Ontario (average of $243). Flying from Las Vegas to Region of Ontario in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Las Vegas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Las Vegas to Pearson Intl flights
Las Vegas to Vancouver Intl flights
Las Vegas to Edmonton flights
Las Vegas to Calgary flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Las Vegas to Abbotsford flights
Reno to Vancouver Intl flights
Las Vegas to Region of Waterloo Intl flights
Las Vegas to Toronto Island flights
Las Vegas to Hamilton flights
Las Vegas to Winnipeg flights
Reno to Calgary flights
Las Vegas to Regina flights
Reno to Pearson Intl flights
Las Vegas to Victoria flights
Las Vegas to Kelowna flights
Las Vegas to Ottawa flights
Las Vegas to Charlottetown flights
Reno to Pierre Elliott Trudeau Intl flights
Las Vegas to Kamloops flights
Las Vegas to St. John's flights
Las Vegas to Moncton flights
Reno to Halifax flights
Las Vegas to Yellowknife flights
Reno to Ottawa flights
Las Vegas to Fort McMurray flights
Reno to Victoria flights
Reno to St. John's flights

Top 7 airlines flying from Las Vegas to Ontario

Discover the top 7 airlines that operate flights from Las Vegas to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$467FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$109Average$429FlexibilityNo cancel feeOn-time67%
Flair AirlinesCheapest$112Average$175FlexibilityNo cancel feeOn-timeN/A
Porter AirlinesCheapest$126Average$282FlexibilityNo cancel feeOn-time52%
WestJetCheapest$157Average$267FlexibilityNo cancel feeOn-time60%
Air TransatCheapest$169Average$317FlexibilityNo cancel feeOn-time50%
DeltaCheapest$240Average$454FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.