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$81+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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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 August 21, 2025.

Round-trip from

$172
(Kiwi.com)

One-way from

$81
(oojo)

Popular in

June

Cheapest in

February

Average price

$292

Good round-trip deal

$187 or less

Good one-way deal

$97 or less
From Las Vegas Harry Reid Intl to Ontario
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One-way flight from Las Vegas Harry Reid Intl to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Ontario.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Ontario.
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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 August 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/711:30 amLAS - YYZ
1 stop8h 22mWestJet
Wed 10/159:45 amYYZ - LAS
Nonstop4h 54mWestJet
Deal found 8/21$172
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 10/812:35 pmLAS - YYZ
Nonstop4h 23mWestJet
Wed 10/152:00 pmYYZ - LAS
1 stop9h 21mWestJet
Deal found 8/21$181
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 12/312:40 pmLAS - YYZ
Nonstop4h 15mPorter Airlines
Wed 12/109:35 amYYZ - LAS
Nonstop5h 07mPorter Airlines
Deal found 8/21$182
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Wed 11/2612:40 pmLAS - YYZ
Nonstop4h 15mMultiple Airlines
Sun 11/309:45 amYYZ - LAS
Nonstop5h 13mMultiple Airlines
Deal found 8/19$184
This Trip.com deal was found by Cheapflights users on 8/21. 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 10/811:30 amLAS - YYZ
1 stop8h 22mWestJet
Sun 10/1212:00 pmYYZ - LAS
1 stop11h 21mWestJet
Deal found 8/21$185
This Air Canada deal was found by Cheapflights users on 8/21. 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 10/711:20 pmLAS - YYZ
Nonstop4h 20mAir Canada
Tue 10/218:30 pmYYZ - LAS
Nonstop4h 43mAir Canada
Deal found 8/21$187
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 11/63:45 pmLAS - YYZ
Nonstop4h 15mMultiple Airlines
Mon 11/179:45 amYYZ - LAS
Nonstop5h 13mMultiple Airlines
Deal found 8/20$189
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Wed 9/1712:35 pmLAS - YYZ
Nonstop4h 23mWestJet
Wed 9/249:45 amYYZ - LAS
Nonstop4h 54mWestJet
Deal found 8/20$190
This Air Canada deal was found by Cheapflights users on 8/21. 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 10/711:15 pmLAS - YTZ
1 stop9h 30mAir Canada
Tue 10/213:25 pmYTZ - LAS
1 stop9h 57mAir Canada
Deal found 8/21$191
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Fri 11/71:10 pmLAS - YYZ
Nonstop4h 22mMultiple Airlines
Thu 11/1312:40 pmYYZ - LAS
Nonstop5h 07mMultiple Airlines
Deal found 8/21$193
This Air Canada deal was found by Cheapflights users on 8/19. 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.
Fri 9/1911:15 pmLAS - YTZ
2 stops9h 16mAir Canada
Sat 9/203:25 pmYTZ - LAS
1 stop9h 57mAir Canada
Deal found 8/19$232
This Air Canada deal was found by Cheapflights users on 8/21. 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.
Sat 9/1311:20 pmLAS - YTZ
1 stop9h 25mAir Canada
Sat 9/203:25 pmYTZ - LAS
1 stop9h 57mAir Canada
Deal found 8/21$240

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 August 21, 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 10/7

11:30 am-10:52 pm

1 stop8h 22m

Toronto Pearson Intl

Wed 10/15

9:45 am-11:39 am

Nonstop4h 54m

$172

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 10/8

12:35 pm-7:58 pm

Nonstop4h 23m

Toronto Pearson Intl

Sun 10/12

12:00 pm-8:21 pm

1 stop11h 21m

$175

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 10/8

12:35 pm-7:58 pm

Nonstop4h 23m

Toronto Pearson Intl

Wed 10/15

2:00 pm-8:21 pm

1 stop9h 21m

$181

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 10/7

1:25 pm-5:51 am

2 stops13h 26m

Toronto Pearson Intl

Tue 10/21

11:00 am-5:34 pm

1 stop9h 34m

$183

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 10/14

11:20 pm-6:40 am

Nonstop4h 20m

Toronto Pearson Intl

Wed 10/22

8:35 pm-10:18 pm

Nonstop4h 43m

$187

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 10/7

11:20 pm-6:40 am

Nonstop4h 20m

Toronto Pearson Intl

Tue 10/21

8:30 pm-10:13 pm

Nonstop4h 43m

$187

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 11/6

3:45 pm-11:00 pm

Nonstop4h 15m

Toronto Pearson Intl

Mon 11/17

9:45 am-11:58 am

Nonstop5h 13m

$189

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 9/17

12:35 pm-7:58 pm

Nonstop4h 23m

Toronto Pearson Intl

Wed 9/24

9:45 am-11:39 am

Nonstop4h 54m

$190

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Wed 10/8

11:15 pm-11:45 am

1 stop9h 30m

Toronto Island

Wed 10/15

3:25 pm-10:22 pm

1 stop9h 57m

$191

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Tue 10/7

11:15 pm-11:45 am

1 stop9h 30m

Toronto Island

Tue 10/21

3:25 pm-10:22 pm

1 stop9h 57m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 60 results
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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 August is currently the most expensive (average of $348). 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 August 21, 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 August 21, 2025.

The most flights from LAS to CAON are scheduled on a Thursday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 August 21, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Air Transat, and United Airlines from Las Vegas to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
7.9
Good
341 reviews
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
429 reviews
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,930 reviews
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
3,044 reviews
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
341 reviews

Food

7.6

Entertainment

7.0

Overall

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • How long is the flight from Las Vegas to Region of Ontario?

    Departing from Las Vegas to Region of Ontario will take you 8h 22m. The distance from Las Vegas to Region of Ontario is about 1938 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 - Montreal Pierre Elliott Trudeau Intl, Las Vegas Harry Reid Intl - Toronto Pearson Intl and Las Vegas Harry Reid Intl - Toronto Island.

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

    Consider Delta (87%), Air Canada Rouge (81%) or Air France (79%) 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 $820, our data shows the cheapest flight currently is $74. When looking at the most popular route, (Las Vegas Harry Reid Intl - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $286 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 August is currently the most expensive (average of $348). 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.

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Alternative routes for Las Vegas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Las Vegas to Pierre Elliott Trudeau Intl flights
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Top 6 airlines flying from Las Vegas to Ontario

Discover the top 6 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$282FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$94Average$287FlexibilityNo cancel feeOn-time67%
WestJetCheapest$120Average$264FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$128Average$265FlexibilityNo cancel feeOn-time52%
DeltaCheapest$158Average$418FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$221Average$411FlexibilityNo cancel feeOn-time50%

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