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$69+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 July 2, 2025.

Round-trip from

$180
(Mytrip)

One-way from

$70
(Trip.com)

Popular in

July

Cheapest in

February

Average price

$359

Good round-trip deal

$251 or less

Good one-way deal

$130 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. 19% potential increase in price ($65 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 July 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 July 2, 2025.

This Mytrip deal was found by Cheapflights users on 6/30. 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.
Thu 8/148:00 amLAS - YKF
1 stop7h 56mWestJet
Thu 8/217:45 pmYKF - LAS
1 stop17h 55mWestJet
Deal found 6/30$180
This Trip.com deal was found by Cheapflights users on 7/2. 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 7/308:00 amLAS - YYZ
2 stops13h 33mWestJet
Wed 8/69:00 amYYZ - LAS
2 stops13h 38mWestJet
Deal found 7/2$180
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 7/86:20 pmLAS - YYZ
1 stop8h 52mMultiple Airlines
Tue 7/158:05 pmYYZ - LAS
Nonstop4h 50mMultiple Airlines
Deal found 7/1$181
This Trip.com deal was found by Cheapflights users on 6/30. 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.
Sat 7/199:55 amLAS - YYZ
Nonstop4h 25mPorter Airlines
Sat 7/267:00 amYYZ - LAS
Nonstop4h 50mPorter Airlines
Deal found 6/30$187
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Mon 8/2511:20 pmLAS - YYZ
Nonstop4h 27mAir Canada
Wed 9/38:30 pmYYZ - LAS
Nonstop4h 43mAir Canada
Deal found 7/2$193
This oojo deal was found by Cheapflights users on 7/2. 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.
Fri 9/1210:00 amLAS - YHM
2 stops11h 40mWestJet
Sun 9/146:00 amYHM - LAS
2 stops12h 01mWestJet
Deal found 7/2$204
This Air Canada deal was found by Cheapflights users on 6/30. 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 9/911:15 pmLAS - YTZ
1 stop9h 30mAir Canada
Sun 9/143:25 pmYTZ - LAS
1 stop9h 47mAir Canada
Deal found 6/30$210
This Booking.com deal was found by Cheapflights users on 6/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1111:05 pmLAS - YOW
1 stop19h 15mAir Canada
Wed 8/136:00 amYOW - LAS
1 stop7h 40mAir Canada
Deal found 6/29$246
This Trip.com deal was found by Cheapflights users on 6/30. 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.
Mon 11/31:10 pmLAS - YOW
1 stop8h 35mWestJet
Fri 11/146:30 amYOW - LAS
2 stops14h 11mWestJet
Deal found 6/30$276
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sat 8/1611:10 pmLAS - YTZ
2 stops12h 36mMultiple Airlines
Sat 8/233:25 pmYTZ - LAS
2 stops22h 30mMultiple Airlines
Deal found 7/2$299
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sat 8/168:00 amLAS - YKF
1 stop13h 46mMultiple Airlines
Sat 8/236:00 amYKF - LAS
2 stops31h 55mMultiple Airlines
Deal found 7/2$300
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Thu 10/303:36 pmLAS - YUL
1 stop16h 59mAmerican Airlines
Fri 10/312:35 pmYUL - LAS
1 stop8h 57mAmerican Airlines
Deal found 7/2$305

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 July 2, 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 - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 8/14

8:00 am-6:56 pm

1 stop7h 56m

Toronto Region of Waterloo Intl

Thu 8/21

7:45 pm-10:40 am

1 stop17h 55m

$180

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 7/30

8:00 am-12:33 am

2 stops13h 33m

Toronto Pearson Intl

Wed 8/6

9:00 am-7:38 pm

2 stops13h 38m

$180

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Sat 8/2

6:20 pm-6:12 am

1 stop8h 52m

Toronto Pearson Intl

Sat 8/9

8:05 pm-9:55 pm

Nonstop4h 50m

$185

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Sat 7/19

9:55 am-5:20 pm

Nonstop4h 25m

Toronto Pearson Intl

Sat 7/26

7:00 am-8:50 am

Nonstop4h 50m

$187

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 8/25

11:20 pm-6:47 am

Nonstop4h 27m

Toronto Pearson Intl

Wed 9/3

8:30 pm-10:13 pm

Nonstop4h 43m

$193

Las VegasHamilton

LAS - YHM

LASYHM

Las Vegas Harry Reid Intl

Fri 9/12

10:00 am-12:40 am

2 stops11h 40m

Hamilton

Sun 9/14

6:00 am-3:01 pm

2 stops12h 01m

$204

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Tue 9/9

11:15 pm-11:45 am

1 stop9h 30m

Toronto Island

Sun 9/14

3:25 pm-10:12 pm

1 stop9h 47m

$210

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Mon 8/11

11:05 pm-9:20 pm

1 stop19h 15m

Ottawa

Wed 8/13

6:00 am-10:40 am

1 stop7h 40m

$246

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Mon 11/3

1:10 pm-12:45 am

1 stop8h 35m

Ottawa

Fri 11/14

6:30 am-5:41 pm

2 stops14h 11m

$276

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Sat 8/16

11:10 pm-2:46 pm

2 stops12h 36m

Toronto Island

Sat 8/23

3:25 pm-10:55 am

2 stops22h 30m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 46 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 July 2, 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 July 2, 2025.

The most flights from LAS to CAON are scheduled on a Wednesday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 July 2, 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. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
298 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
407 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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 ($70), United Airlines ($93), and American Airlines ($100).

  • 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 France (86%), Delta (79%) or WestJet (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 $966, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Las Vegas Harry Reid Intl - Toronto Pearson Intl), you can expect to pay $173 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
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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$442FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$100Average$308FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$127Average$266FlexibilityNo cancel feeOn-time52%
WestJetCheapest$129Average$278FlexibilityNo cancel feeOn-time60%
DeltaCheapest$158Average$435FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$158Average$317FlexibilityNo cancel feeOn-time50%

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