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$71+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheap 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 February 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Wed 4/158:05 am
LAS
-
YYZ
2 stops12h 33m
WestJet
Fri 4/1712:30 pm
YYZ
-
LAS
1 stop10h 46m
WestJet
Deal found 2/15$149
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Tue 3/38:00 am
LAS
-
YYZ
1 stop8h 36m
WestJet
Tue 3/109:40 am
YYZ
-
LAS
2 stops11h 33m
WestJet
Deal found 2/15$153
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Fri 4/311:25 pm
LAS
-
YYZ
Nonstop4h 18m
WestJet
Wed 4/89:40 am
YYZ
-
LAS
2 stops11h 33m
WestJet
Deal found 2/15$157
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Wed 3/48:00 am
LAS
-
YYZ
1 stop8h 36m
WestJet
Sun 3/88:00 pm
YYZ
-
LAS
Nonstop5h 12m
WestJet
Deal found 2/15$158
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Thu 3/511:25 pm
LAS
-
YYZ
Nonstop4h 18m
WestJet
Sun 3/812:30 pm
YYZ
-
LAS
1 stop10h 46m
WestJet
Deal found 2/14$159
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Fri 4/37:05 pm
LAS
-
YYZ
1 stop8h 08m
WestJet
Mon 6/19:45 am
YYZ
-
LAS
Nonstop4h 55m
WestJet
Deal found 2/14$160
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Wed 3/48:00 am
LAS
-
YYZ
1 stop8h 36m
WestJet
Fri 3/68:00 pm
YYZ
-
LAS
Nonstop5h 12m
WestJet
Deal found 2/15$161
This Kiwi.com deal was found by Cheapflights users on 2/13. 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.
Fri 3/1311:25 pm
LAS
-
YYZ
Nonstop4h 18m
WestJet
Fri 3/208:00 pm
YYZ
-
LAS
Nonstop5h 12m
WestJet
Deal found 2/13$164
This Jettzy deal was found by Cheapflights users on 2/17. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:25 pm
LAS
-
YTZ
1 stop9h 27m
Air Canada
Mon 6/84:30 pm
YTZ
-
LAS
1 stop9h 00m
Air Canada
Deal found 2/17$193
This Trip.com deal was found by Cheapflights users on 2/15. 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.
Thu 5/2812:35 pm
LAS
-
YOW
1 stop8h 45m
WestJet
Mon 6/15:55 am
YOW
-
LAS
1 stop8h 45m
WestJet
Deal found 2/15$202
This Air Canada deal was found by Cheapflights users on 2/14. 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.
Wed 4/19:10 am
LAS
-
YTZ
1 stop9h 22m
Air Canada
Mon 6/15:30 pm
YTZ
-
LAS
1 stop8h 00m
Air Canada
Deal found 2/14$220
This oojo deal was found by Cheapflights users on 2/14. 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.
Wed 4/111:20 am
LAS
-
YOW
1 stop10h 20m
WestJet
Wed 4/85:45 pm
YOW
-
LAS
2 stops29h 31m
WestJet
Deal found 2/14$225

Find 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 February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$149
(Kiwi.com)

One-way from

$71
(oojo)

Popular in

November

Cheapest in

April

Average price

$256

Good round-trip deal

$262 or less

Good one-way deal

$96 or less
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Toronto (YTO) flights.
Search Deals
From Las Vegas Harry Reid Intl to Ontario
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to Ontario.
Search Deals
Price to beat on a one-way flight from Las Vegas Harry Reid Intl to Ontario.
Search Deals

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 February 17, 2026.
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 3/3

11:20 am-11:11 pm

1 stop8h 51m

Toronto Pearson Intl

Tue 3/10

9:40 am-6:13 pm

2 stops11h 33m

$153

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 5/8

6:10 pm-5:45 am

1 stop8h 35m

Toronto Pearson Intl

Sun 5/10

12:40 pm-9:40 pm

2 stops12h 00m

$153

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 3/4

8:00 am-11:35 pm

2 stops12h 35m

Toronto Pearson Intl

Sun 3/8

12:30 pm-8:16 pm

1 stop10h 46m

$153

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 5/15

6:10 pm-5:45 am

1 stop8h 35m

Toronto Pearson Intl

Sun 5/17

12:40 pm-9:40 pm

2 stops12h 00m

$153

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 3/31

7:05 pm-6:13 am

1 stop8h 08m

Toronto Pearson Intl

Mon 6/1

6:15 am-12:55 pm

1 stop9h 40m

$162

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 4/1

11:20 am-11:11 pm

1 stop8h 51m

Toronto Pearson Intl

Mon 6/1

9:45 am-11:40 am

Nonstop4h 55m

$164

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 4/3

11:25 pm-6:43 am

Nonstop4h 18m

Toronto Pearson Intl

Mon 6/1

9:45 am-11:40 am

Nonstop4h 55m

$164

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 3/13

11:25 pm-6:43 am

Nonstop4h 18m

Toronto Pearson Intl

Fri 3/20

8:00 pm-10:12 pm

Nonstop5h 12m

$164

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 4/2

11:25 pm-6:43 am

Nonstop4h 18m

Toronto Pearson Intl

Mon 6/1

9:45 am-11:40 am

Nonstop4h 55m

$166

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 4/15

8:05 am-7:36 pm

1 stop8h 31m

Toronto Pearson Intl

Sun 4/19

9:40 am-6:13 pm

2 stops11h 33m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

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, March is the cheapest month in which you can book a flight from Las Vegas to Region of Ontario (average of $53). Flying from Las Vegas to Region of Ontario in July is currently the most expensive (average of $157). 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 February 17, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 45% on flights from Las Vegas to Region of Ontario by exploring options for tickets in the evening.

What is the cheapest day to fly from Las Vegas to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Ontario. Price data was last updated on March 9, 2025.

Travelers seeking maximum savings on their Las Vegas to Region of Ontario flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 February 17, 2026.

The most flights from LAS to CAON are scheduled on a Monday (12 on average). You will have fewer flight options on Tuesday, 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 February 17, 2026.
Peruse reviews from past customers who have flown with Porter Airlines, Delta, 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
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.
Porter Airlines
7.9
Good
416 reviews
Porter Airlines
7.9
Good
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.
Delta
7.9
Good
8,208 reviews
Porter Airlines
7.9
Good
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.
United Airlines
7.4
Good
9,313 reviews
Porter Airlines
7.9
Good
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.
WestJet
7.2
Good
3,268 reviews
Porter Airlines
7.9
Good
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.
Air Canada
7.1
Good
10,732 reviews
Porter Airlines
7.9
Good
416 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Jason,Feb 2026

PHX - YVR

This was my first flight with Porter Airlines. My only complaint was that I got an unpleasant surprise when I checked in at the counter at the airport. When I purchased my ticket online at the airline website, I had used a virtual credit card and my reservation was accepted. But the agent at the counter informed me that there was an issue with my payment method and that I would need to pay with a physical debit or credit card. The airline would reimburse me within 5 to 7 business days. I’m curious why my original payment was accepted if Porter doesn’t honor virtual payment cards.

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 51m. 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 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 ($48), Porter Airlines ($55), and United Airlines ($68).

  • 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 (50%), WestJet (50%) or American Airlines (35%) 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 $570, our data shows the cheapest flight currently is $60. When looking at the most popular route, (Las Vegas Harry Reid Intl - Toronto Pearson Intl), you can expect to pay $171 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, March is the cheapest month in which you can book a flight from Las Vegas to Region of Ontario (average of $53). Flying from Las Vegas to Region of Ontario in July is currently the most expensive (average of $157). 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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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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$68Average$304FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$80Average$326FlexibilityNo cancel feeOn-time67%
WestJetCheapest$89Average$283FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$92Average$283FlexibilityNo cancel feeOn-time52%
DeltaCheapest$131Average$319FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$146Average$353FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$290Average$422FlexibilityNo cancel feeOn-time71%

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