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$87+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$190
(Flightnetwork)

One-way from

$87
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$298

Good round-trip deal

$276 or less

Good one-way deal

$124 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. 20% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/208:00 amLAS - YYZ
2 stops13h 31mMultiple Airlines
dom. 9/218:30 pmYYZ - LAS
Nonstop4h 43mMultiple Airlines
Deal found 6/12$190
This FlightHub deal was found by Cheapflights users on 6/11. 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. 9/310:55 pmLAS - YYZ
Nonstop4h 25mPorter Airlines
mié. 9/107:00 amYYZ - LAS
Nonstop4h 50mPorter Airlines
Deal found 6/11$197
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/86:20 pmLAS - YYZ
1 stop9h 32mWestJet
mar. 7/153:00 pmYYZ - LAS
1 stop9h 30mWestJet
Deal found 6/10$200
This Agoda.com deal was found by Cheapflights users on 6/12. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1911:15 pmLAS - YTZ
1 stop9h 30mAir Canada
mar. 9/233:25 pmYTZ - LAS
1 stop9h 47mAir Canada
Deal found 6/12$226
This FlightHub deal was found by Cheapflights users on 6/11. 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.
vie. 7/2510:05 amLAS - YHM
2 stops11h 36mWestJet
lun. 8/116:00 amYHM - LAS
2 stops13h 31mWestJet
Deal found 6/11$228
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/2510:55 pmLAS - YOW
1 stop8h 26mMultiple Airlines
vie. 8/16:10 amYOW - LAS
2 stops13h 21mMultiple Airlines
Deal found 6/10$229
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/3011:30 amLAS - YKF
1 stop10h 16mWestJet
jue. 7/107:45 pmYKF - LAS
2 stops27h 36mWestJet
Deal found 6/10$229
This Kiwi.com deal was found by Cheapflights users on 6/11. 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. 7/266:20 pmLAS - YOW
1 stop9h 25mWestJet
vie. 8/16:10 amYOW - LAS
2 stops13h 21mWestJet
Deal found 6/11$236
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/1611:30 amLAS - YUL
1 stop10h 13mMultiple Airlines
mié. 7/233:10 pmYUL - LAS
1 stop9h 45mMultiple Airlines
Deal found 6/10$251
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/149:55 amLAS - YOW
1 stop8h 06mPorter Airlines
sáb. 6/214:40 pmYOW - LAS
1 stop8h 15mPorter Airlines
Deal found 6/10$255
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
vie. 7/410:55 pmLAS - YUL
1 stop7h 07mPorter Airlines
sáb. 7/123:10 pmYUL - LAS
1 stop9h 45mPorter Airlines
Deal found 6/9$262
This Trip.com deal was found by Cheapflights users on 6/9. 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.
mié. 7/99:10 pmLAS - YUL
2 stops16h 17mWestJet
mié. 7/167:00 amYUL - LAS
2 stops16h 21mWestJet
Deal found 6/9$267

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 junio 12, 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. 9/20

8:00 am-12:31 am

2 stops13h 31m

Toronto Pearson Intl

dom. 9/21

8:30 pm-10:13 pm

Nonstop4h 43m

$190

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mié. 9/3

10:55 pm-6:20 am

Nonstop4h 25m

Toronto Pearson Intl

mié. 9/10

7:00 am-8:50 am

Nonstop4h 50m

$197

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

mar. 7/8

6:20 pm-6:52 am

1 stop9h 32m

Toronto Pearson Intl

mar. 7/15

3:00 pm-9:30 pm

1 stop9h 30m

$200

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

vie. 9/19

11:15 pm-11:45 am

1 stop9h 30m

Toronto Island

mar. 9/23

3:25 pm-10:12 pm

1 stop9h 47m

$226

Las VegasHamilton

LAS - YHM

LASYHM

Las Vegas Harry Reid Intl

vie. 7/25

10:05 am-12:41 am

2 stops11h 36m

Hamilton

lun. 8/11

6:00 am-4:31 pm

2 stops13h 31m

$228

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

vie. 7/25

10:55 pm-10:21 am

1 stop8h 26m

Ottawa

vie. 8/1

6:10 am-4:31 pm

2 stops13h 21m

$229

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

lun. 6/30

11:30 am-12:46 am

1 stop10h 16m

Toronto Region of Waterloo Intl

jue. 7/10

7:45 pm-8:21 pm

2 stops27h 36m

$229

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

sáb. 7/26

6:20 pm-6:45 am

1 stop9h 25m

Ottawa

vie. 8/1

6:10 am-4:31 pm

2 stops13h 21m

$236

Las VegasMontreal

LAS - YUL

LASYUL

Las Vegas Harry Reid Intl

mié. 7/16

11:30 am-12:43 am

1 stop10h 13m

Montreal Pierre Elliott Trudeau Intl

mié. 7/23

3:10 pm-9:55 pm

1 stop9h 45m

$251

Las VegasMontreal

LAS - YUL

LASYUL

Las Vegas Harry Reid Intl

vie. 7/4

10:55 pm-9:02 am

1 stop7h 07m

Montreal Pierre Elliott Trudeau Intl

sáb. 7/12

3:10 pm-9:55 pm

1 stop9h 45m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 52 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 July is currently the most expensive (average of $353). 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 junio 12, 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 junio 12, 2025.

The most flights from LAS to CAON are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 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 junio 12, 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
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Porter Airlines
8.0
Very good
288 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Air Transat
7.8
Good
396 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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 WestJet ($87), Porter Airlines ($89), and Air Canada ($91).

  • 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 Island.

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

    Consider Delta (76%), WestJet (75%) or Air Transat (75%) 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 $396, our data shows the cheapest flight currently is $72. When looking at the most popular route, (Las Vegas Harry Reid Intl - Toronto Pearson Intl), you can expect to pay $197 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 $353). 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
Las Vegas to Calgary flights
Las Vegas to Abbotsford flights
Las Vegas to Pierre Elliott Trudeau Intl flights
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Reno to Halifax flights
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Las Vegas to Fort McMurray flights

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$443FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$105Average$352FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$129Average$266FlexibilityNo cancel feeOn-time52%
WestJetCheapest$129Average$290FlexibilityNo cancel feeOn-time60%
Air TransatCheapest$158Average$317FlexibilityNo cancel feeOn-time50%
DeltaCheapest$299Average$454FlexibilityNo cancel feeOn-timeN/A

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