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$76+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
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 septiembre 15, 2025.

Round-trip from

$159
(Kiwi.com)

One-way from

$76
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$214

Good round-trip deal

$192 or less

Good one-way deal

$150 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 ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
jue. 12/411:20 amLAS - YYZ
1 stop8h 51mWestJet
mar. 12/99:40 amYYZ - LAS
2 stops11h 31mWestJet
Deal found 9/15$159
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/18:00 amLAS - YYZ
2 stops13h 31mWestJet
mar. 10/710:00 amYYZ - LAS
2 stops12h 37mWestJet
Deal found 9/15$161
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
jue. 9/2512:35 pmLAS - YYZ
Nonstop4h 23mWestJet
mar. 11/259:40 amYYZ - LAS
2 stops11h 31mWestJet
Deal found 9/14$162
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1511:30 amLAS - YYZ
1 stop8h 22mWestJet
dom. 10/196:30 amYYZ - LAS
2 stops11h 31mWestJet
Deal found 9/13$163
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/71:25 pmLAS - YYZ
2 stops13h 26mWestJet
mar. 10/2112:00 pmYYZ - LAS
1 stop11h 21mWestJet
Deal found 9/14$166
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1612:35 pmLAS - YYZ
Nonstop4h 23mWestJet
dom. 10/196:30 amYYZ - LAS
1 stop11h 31mWestJet
Deal found 9/13$167
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/108:00 amLAS - YYZ
2 stops13h 31mWestJet
dom. 10/1210:00 amYYZ - LAS
1 stop10h 34mWestJet
Deal found 9/14$168
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
vie. 10/248:00 amLAS - YYZ
1 stop9h 52mWestJet
lun. 10/2710:15 pmYYZ - LAS
1 stop17h 04mWestJet
Deal found 9/13$170
This Trip.com deal was found by Cheapflights users on 9/15. 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.
jue. 9/2512:35 pmLAS - YYZ
Nonstop4h 23mWestJet
lun. 9/293:00 pmYYZ - LAS
1 stop9h 29mWestJet
Deal found 9/15$171
This Trip.com deal was found by Cheapflights users on 9/13. 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.
sáb. 10/1111:30 amLAS - YUL
1 stop10h 11mWestJet
sáb. 10/186:45 amYUL - LAS
2 stops15h 52mWestJet
Deal found 9/13$176
This Air Canada deal was found by Cheapflights users on 9/14. 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.
mar. 10/711:15 pmLAS - YTZ
1 stop9h 30mAir Canada
mar. 10/213:25 pmYTZ - LAS
1 stop9h 57mAir Canada
Deal found 9/14$178
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
sáb. 10/1111:30 amLAS - YUL
1 stop10h 11mWestJet
mié. 10/226:45 amYUL - LAS
1 stop7h 54mWestJet
Deal found 9/14$183

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 septiembre 15, 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

sáb. 10/18

11:30 am-10:52 pm

1 stop8h 22m

Toronto Pearson Intl

lun. 10/20

10:25 pm-12:32 pm

1 stop17h 07m

$163

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mié. 10/15

11:30 am-10:52 pm

1 stop8h 22m

Toronto Pearson Intl

dom. 10/19

6:30 am-3:01 pm

2 stops11h 31m

$163

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

vie. 10/31

1:10 pm-8:32 pm

Nonstop4h 22m

Toronto Pearson Intl

lun. 11/3

1:30 pm-8:15 pm

1 stop9h 45m

$165

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mar. 10/7

8:00 am-12:31 am

2 stops13h 31m

Toronto Pearson Intl

mar. 10/21

2:00 pm-8:21 pm

1 stop9h 21m

$166

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

jue. 10/16

12:35 pm-7:58 pm

Nonstop4h 23m

Toronto Pearson Intl

dom. 10/19

6:30 am-3:01 pm

1 stop11h 31m

$167

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

sáb. 11/22

8:00 am-7:36 pm

1 stop8h 36m

Toronto Pearson Intl

lun. 11/24

9:40 am-6:11 pm

2 stops11h 31m

$168

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

jue. 9/25

12:35 pm-7:58 pm

Nonstop4h 23m

Toronto Pearson Intl

lun. 9/29

3:00 pm-9:29 pm

1 stop9h 29m

$171

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

jue. 12/4

1:10 pm-8:32 pm

Nonstop4h 22m

Toronto Pearson Intl

dom. 12/7

10:00 am-6:11 pm

1 stop11h 11m

$173

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mar. 10/14

9:10 pm-1:38 pm

1 stop13h 28m

Toronto Pearson Intl

mar. 10/28

12:40 pm-2:47 pm

Nonstop5h 07m

$177

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mar. 10/14

9:10 pm-3:46 pm

2 stops15h 36m

Toronto Pearson Intl

mar. 10/21

9:00 am-5:34 pm

2 stops11h 34m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 septiembre 15, 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 septiembre 15, 2025.

The most flights from LAS to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Las Vegas to Region of Ontario?

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 septiembre 15, 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
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,929 reviews
Porter Airlines
7.9
Good
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,091 reviews
Porter Airlines
7.9
Good
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Overall

7.9

Food

7.6

Comfort

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 7h 45m. The distance from Las Vegas to Region of Ontario is about 1949 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 United Airlines ($83), WestJet ($84), and Air Canada ($106).

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

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

    Consider Air Canada (87%), Air Canada Rouge (78%) or Porter Airlines (72%) 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 $534, our data shows the cheapest flight currently is $74. When looking at the most popular route, (Las Vegas Harry Reid Intl - Toronto Pearson Intl), you can expect to pay $158 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.
Las Vegas to Vancouver Intl flights
Las Vegas to Pearson 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$282FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$90Average$294FlexibilityNo cancel feeOn-time67%
WestJetCheapest$119Average$278FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$129Average$265FlexibilityNo cancel feeOn-time52%
DeltaCheapest$158Average$418FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$221Average$411FlexibilityNo cancel feeOn-time50%

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