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$64+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$176
(Kiwi.com)

One-way from

$64
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$221

Good round-trip deal

$230 or less

Good one-way deal

$86 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Toronto (YTO) flights.
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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. 15% potential increase in price ($45 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 April 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 April 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/169:55 amLAS - YYZ
Nonstop4h 25mPorter Airlines
Tue 5/201:50 pmYYZ - LAS
Nonstop4h 53mPorter Airlines
Deal found 4/28$176
This Justfly.com deal was found by Cheapflights users on 4/28. 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.
Thu 5/1510:00 amLAS - YKF
2 stops11h 46mWestJet
Mon 5/196:00 amYKF - LAS
1 stop9h 55mWestJet
Deal found 4/28$182
This Booking.com deal was found by Cheapflights users on 4/28. 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 5/1211:30 pmLAS - YYZ
Nonstop4h 19mMultiple Airlines
Tue 5/207:00 amYYZ - LAS
Nonstop4h 53mMultiple Airlines
Deal found 4/28$183
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/118:00 amLAS - YYZ
2 stops13h 33mWestJet
Wed 6/1810:00 amYYZ - LAS
1 stop10h 35mWestJet
Deal found 4/28$185
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Fri 5/1611:20 pmLAS - YYZ
1 stop9h 19mAir Canada
Sun 5/254:00 pmYYZ - LAS
1 stop9h 19mAir Canada
Deal found 4/28$198
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/1112:20 pmLAS - YOW
Nonstop4h 35mMultiple Airlines
Sun 6/153:45 pmYOW - LAS
1 stop8h 45mMultiple Airlines
Deal found 4/28$229
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/116:20 pmLAS - YOW
1 stop9h 25mWestJet
Sun 6/153:45 pmYOW - LAS
1 stop8h 45mWestJet
Deal found 4/28$230
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/309:25 amLAS - YTZ
1 stop8h 07mMultiple Airlines
Sun 6/17:00 amYTZ - LAS
1 stop7h 25mMultiple Airlines
Deal found 4/28$241
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/1512:59 amLAS - YYZ
1 stop7h 35mUnited Airlines
Tue 5/208:45 amYYZ - LAS
1 stop7h 14mUnited Airlines
Deal found 4/28$241
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Fri 5/1611:30 pmLAS - YTZ
2 stops12h 20mAir Canada
Sun 5/257:25 amYTZ - LAS
2 stops10h 32mAir Canada
Deal found 4/28$248
This American Airlines deal was found by Cheapflights users on 4/28. 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 6/1211:55 pmLAS - YYZ
1 stop9h 45mAmerican Airlines
Fri 6/133:45 pmYYZ - LAS
1 stop9h 22mAmerican Airlines
Deal found 4/28$253
This Trip.com deal was found by Cheapflights users on 4/27. 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.
Tue 7/221:25 pmLAS - YUL
1 stop14h 43mWestJet
Tue 7/297:00 amYUL - LAS
2 stops15h 38mWestJet
Deal found 4/27$261

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 29, 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

Fri 5/16

9:55 am-5:20 pm

Nonstop4h 25m

Toronto Pearson Intl

Tue 5/20

1:50 pm-3:43 pm

Nonstop4h 53m

$176

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 5/15

10:00 am-12:46 am

2 stops11h 46m

Toronto Region of Waterloo Intl

Mon 5/19

6:00 am-12:55 pm

1 stop9h 55m

$182

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 5/12

11:30 pm-6:49 am

Nonstop4h 19m

Toronto Pearson Intl

Tue 5/20

7:00 am-8:53 am

Nonstop4h 53m

$183

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 6/11

8:00 am-12:33 am

2 stops13h 33m

Toronto Pearson Intl

Wed 6/18

10:00 am-5:35 pm

1 stop10h 35m

$185

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 5/16

11:20 pm-11:39 am

1 stop9h 19m

Toronto Pearson Intl

Sun 5/25

4:00 pm-10:19 pm

1 stop9h 19m

$198

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 6/11

12:20 pm-7:55 pm

Nonstop4h 35m

Ottawa

Sun 6/15

3:45 pm-9:30 pm

1 stop8h 45m

$229

Las VegasOttawa

LAS - YOW

LASYOW

Las Vegas Harry Reid Intl

Wed 6/11

6:20 pm-6:45 am

1 stop9h 25m

Ottawa

Sun 6/15

3:45 pm-9:30 pm

1 stop8h 45m

$230

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 5/15

12:59 am-11:34 am

1 stop7h 35m

Toronto Pearson Intl

Tue 5/20

3:00 pm-9:34 pm

1 stop9h 34m

$241

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Fri 5/30

9:25 am-8:32 pm

1 stop8h 07m

Toronto Island

Sun 6/1

7:00 am-11:25 am

1 stop7h 25m

$241

Las VegasToronto

LAS - YTZ

LASYTZ

Las Vegas Harry Reid Intl

Fri 5/16

11:30 pm-2:50 pm

2 stops12h 20m

Toronto Island

Sun 5/25

7:25 am-2:57 pm

2 stops10h 32m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 58 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 $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 29, 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.

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 29, 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and Porter Airlines 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.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Alaska Airlines
8.0
Very good
9,968 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
8.0
Very good
285 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding 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.

  • 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 ($64), Porter Airlines ($70), and United Airlines ($94).

  • 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 (78%), Delta (69%) or WestJet (69%) 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 $747, our data shows the cheapest flight currently is $55. 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 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

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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 Pearson Intl flights
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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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$441FlexibilityNo cancel feeOn-time69%
Flair AirlinesCheapest$107Average$168FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$108Average$357FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$118Average$277FlexibilityNo cancel feeOn-time52%
WestJetCheapest$140Average$254FlexibilityNo cancel feeOn-time60%
Air TransatCheapest$169Average$317FlexibilityNo cancel feeOn-time50%
DeltaCheapest$240Average$454FlexibilityNo cancel feeOn-timeN/A

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