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Cheap flights from Las Vegas to Ontario from C$ 187

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
14 Jul — 21 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Las Vegas to Ontario

Enter your travel dates to find the best prices.

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 14 June 2026.

Thu 2/78:30 a.m.
LAS
-
YYZ
2 stops12h 29m
WestJet
Fri 10/73:50 p.m.
YYZ
-
LAS
1 stop8h 50m
WestJet
Deal found 11/6C$ 368
Sat 22/88:30 a.m.
LAS
-
YYZ
2 stops12h 29m
WestJet
Fri 28/83:50 p.m.
YYZ
-
LAS
1 stop8h 50m
WestJet
Deal found 10/6C$ 369
Fri 3/78:30 a.m.
LAS
-
YYZ
2 stops12h 29m
WestJet
Wed 15/73:50 p.m.
YYZ
-
LAS
1 stop8h 50m
WestJet
Deal found 10/6C$ 371
Wed 8/71:45 p.m.
LAS
-
YYZ
2 stops12h 25m
WestJet
Mon 13/79:00 a.m.
YYZ
-
LAS
1 stop11h 15m
WestJet
Deal found 12/6C$ 373
Thu 2/71:45 p.m.
LAS
-
YYZ
2 stops12h 25m
WestJet
Wed 8/73:50 p.m.
YYZ
-
LAS
1 stop8h 50m
WestJet
Deal found 10/6C$ 375
Wed 8/71:45 p.m.
LAS
-
YYZ
2 stops12h 25m
WestJet
Wed 15/77:00 a.m.
YYZ
-
LAS
1 stop8h 55m
WestJet
Deal found 9/6C$ 376
Thu 2/78:30 a.m.
LAS
-
YYZ
1 stop8h 35m
WestJet
Thu 16/712:40 p.m.
YYZ
-
LAS
2 stops12h 00m
WestJet
Deal found 10/6C$ 378
Tue 25/81:45 p.m.
LAS
-
YYZ
1 stop8h 20m
WestJet
Thu 27/812:40 p.m.
YYZ
-
LAS
2 stops12h 00m
WestJet
Deal found 10/6C$ 379
Thu 6/81:45 p.m.
LAS
-
YYZ
2 stops12h 25m
WestJet
Thu 20/812:40 p.m.
YYZ
-
LAS
2 stops12h 00m
WestJet
Deal found 10/6C$ 383
Thu 23/71:45 p.m.
LAS
-
YYZ
1 stop8h 20m
WestJet
Sun 26/72:50 p.m.
YYZ
-
LAS
1 stop9h 50m
WestJet
Deal found 11/6C$ 385
Thu 16/78:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Sat 1/88:40 p.m.
YKF
-
LAS
1 stop28h 00m
WestJet
Deal found 10/6C$ 401
Thu 10/98:30 a.m.
LAS
-
YKF
1 stop8h 20m
WestJet
Sat 12/98:40 p.m.
YKF
-
LAS
1 stop23h 35m
WestJet
Deal found 13/6C$ 403

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 14 June 2026.

Round-trip from

C$ 368

One-way from

C$ 187

Popular in

June

Cheapest in

March

Average price

C$ 533

Good round-trip deal

C$ 173 or less

Good one-way deal

C$ 240 or less
WestJet
  • WestJet
  • 2/7-10/7
  • 3 total stops
  • 21h 19m total
  • Las Vegas to Ontario
Search Deals
WestJet
  • WestJet
  • 21/8
  • 1 total stop
  • 8h 20m total
  • Las Vegas to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 118 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 629,999 searches. Data last updated 14 June 2026.
Use the filters below to find and compare flights from Las Vegas to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 22/7

1:45 p.m.-1:05 a.m.

1 stop8h 20m

Toronto Pearson Intl

Fri 24/7

9:00 a.m.-5:15 p.m.

1 stop11h 15m

C$ 383

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 2/7

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Fri 10/7

8:40 p.m.-9:40 p.m.

1 stop28h 00m

C$ 414

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Tue 11/8

6:10 p.m.-5:45 a.m.

1 stop8h 35m

Toronto Pearson Intl

Tue 18/8

7:00 a.m.-12:55 p.m.

1 stop8h 55m

C$ 424

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Fri 28/8

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Sun 30/8

8:40 p.m.-12:55 p.m.

1 stop19h 15m

C$ 429

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 16/7

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Thu 23/7

8:40 p.m.-12:55 p.m.

1 stop19h 15m

C$ 431

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Sat 26/9

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Thu 1/10

8:40 p.m.-9:40 p.m.

1 stop28h 00m

C$ 435

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 17/9

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Mon 21/9

8:40 p.m.-12:55 p.m.

1 stop19h 15m

C$ 435

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Sat 1/8

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Wed 5/8

8:40 p.m.-9:40 p.m.

1 stop28h 00m

C$ 435

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Thu 17/9

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Sun 20/9

8:40 p.m.-5:15 p.m.

1 stop23h 35m

C$ 436

Las VegasToronto

LAS - YKF

LASYKF

Las Vegas Harry Reid Intl

Mon 6/7

8:30 a.m.-7:50 p.m.

1 stop8h 20m

Toronto Region of Waterloo Intl

Fri 10/7

8:40 p.m.-9:40 p.m.

1 stop28h 00m

C$ 438

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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 C$ 74). Flying from Las Vegas to Region of Ontario in May is currently the most expensive (average of C$ 185). 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 14 June 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 48% on flights from Las Vegas to Region of Ontario by exploring options for tickets in the evening.

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

How far ahead should I book a flight from Las Vegas to Region of Ontario?

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Las Vegas to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 18 April 2026.

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

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 14 June 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andWestJet from Las Vegas to Ontario by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
438 reviews
Check prices

Food

7.6

Comfort

8.0

Crew

8.6

Entertainment

6.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Food

7.6

Comfort

8.0

Crew

8.6

Entertainment

6.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Transat
7.8
Good
555 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Food

7.6

Comfort

8.0

Crew

8.6

Entertainment

6.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,361 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Food

7.6

Comfort

8.0

Crew

8.6

Entertainment

6.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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?

    If you book a flight to Ontario from Las Vegas, you will be flying from Harry Reid Intl, which is the city’s only airport. Las Vegas Harry Reid Intl (LAS) is located 10.0 km from the centre of Las Vegas.

  • How long is the flight from Las Vegas to Region of Ontario?

    Airlines like WestJet, United Airlines, and Air Canada fly from Las Vegas to Region of Ontario in about 8h 20m. The time it takes to get you to your destination can typically vary by up to 6h 31m. The distance between Las Vegas and Region of Ontario is about 3119 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Las Vegas to Region of Ontario one-way?

    One-way options have recently been found by users for as low as C$ 80 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 107 and Air Canada from C$ 123 one-way.

  • What are the most popular routes from Las Vegas to Region of Ontario?

    The most popular route from Las Vegas to Region of Ontario is Las Vegas Harry Reid Intl - Toronto Pearson Intl. You may also consider Las Vegas Harry Reid Intl - Toronto Island or Las Vegas Harry Reid Intl - Montreal Pierre Elliott Trudeau Intl.

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

    The top 3 most reliable airlines when flying from Las Vegas to Region of Ontario are Air France (100%), Delta (90%) and WestJet (90%).

  • What are the cheapest flights from Las Vegas to Region of Ontario?

    Looking for the cheapest flight from Las Vegas to Region of Ontario? While on average our users pay C$ 305, our data indicates the cheapest price to be C$ 143. The most popular route (Las Vegas Harry Reid Intl - Toronto Pearson Intl), is priced around C$ 373.

  • 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 C$ 74). Flying from Las Vegas to Region of Ontario in May is currently the most expensive (average of C$ 185). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Las Vegas to Ontario

Discover the top 3 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 629,999 searches. Data last updated 14 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 143AverageC$ 388FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 297AverageC$ 490FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 441AverageC$ 674FlexibilityNo cancel feeOn-time50%
Search Air Transat flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Las Vegas to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Las Vegas to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Las Vegas to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Las Vegas to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Las Vegas to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Las Vegas to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Las Vegas to Ontario become cheaper?

Yes! Start tracking prices for Las Vegas to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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