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Cheap flights from Las Vegas to Ontario from C$ 198

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — YYZ
5 Sep — 12 Sep1
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 6 August 2026.

Fri 18/911:20 p.m. -
Nonstop4h 19m
Fri 25/98:35 p.m. -
Nonstop4h 47m
Deal found 3/8C$ 358
Mon 28/98:30 a.m. -
1 stop8h 20m
Thu 1/108:40 p.m. -
1 stop23h 35m
Deal found 2/8C$ 368
Fri 18/911:20 p.m. -
Nonstop4h 19m
Fri 25/98:35 p.m. -
Nonstop4h 47m
Deal found 2/8C$ 372
Thu 24/98:30 a.m. -
1 stop8h 20m
Sun 27/98:40 p.m. -
1 stop23h 35m
Deal found 2/8C$ 379
Wed 9/911:25 p.m. -
1 stop9h 25m
Sat 12/94:30 p.m. -
1 stop8h 53m
Deal found 2/8C$ 382
Sun 13/98:30 a.m. -
1 stop8h 20m
Sun 20/98:40 p.m. -
1 stop19h 15m
Deal found 1/8C$ 389
Thu 10/911:20 p.m. -
Nonstop4h 19m
Mon 14/98:35 p.m. -
Nonstop4h 47m
Deal found 1/8C$ 395
Fri 18/98:30 a.m. -
1 stop8h 20m
Fri 25/98:40 p.m. -
1 stop28h 00m
Deal found 3/8C$ 399
Mon 31/811:20 p.m. -
Nonstop4h 19m
Sun 6/98:35 p.m. -
Nonstop4h 47m
Deal found 1/8C$ 400
Thu 27/812:30 a.m. -
1 stop18h 41m
Sun 13/97:00 a.m. -
Nonstop4h 47m
Deal found 2/8C$ 403
Fri 18/911:20 p.m. -
Nonstop4h 19m
Mon 21/97:00 a.m. -
Nonstop4h 47m
Deal found 1/8C$ 404
Sat 5/911:20 p.m. -
Nonstop4h 19m
Thu 10/98:35 p.m. -
Nonstop4h 47m
Deal found 3/8C$ 407

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 6 August 2026.

Round-trip from

C$ 358

One-way from

C$ 198

Popular in

August

Cheapest in

March

Average price

C$ 595

Good round-trip deal

C$ 214 or less

Good one-way deal

C$ 314 or less
Porter Airlines
  • Porter Airlines
  • 18/9-25/9
  • Nonstop
  • 9h 06m total
  • Las Vegas to Ontario
Search Deals
WestJet
  • WestJet
  • 2/12
  • 2 total stops
  • 24h 07m total
  • Las Vegas to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 6 August 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 Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

LASYKF

Las Vegas Harry Reid Intl

Thu 24/9

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

1 stop8h 20m

Toronto Region of Waterloo Intl

Sun 27/9

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

1 stop23h 35m

C$ 379

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

LASYKF

Las Vegas Harry Reid Intl

Fri 18/9

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

1 stop8h 20m

Toronto Region of Waterloo Intl

Fri 25/9

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

1 stop23h 35m

C$ 420

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

LASYKF

Las Vegas Harry Reid Intl

Thu 10/9

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

1 stop8h 20m

Toronto Region of Waterloo Intl

Sun 13/9

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

1 stop23h 35m

C$ 426

Las VegasHamilton

LAS Las Vegas Harry Reid Intl - YHM Hamilton

LASYHM

Las Vegas Harry Reid Intl

Tue 3/11

1:10 p.m.-4:17 p.m.

2 stops24h 07m

Hamilton

Mon 9/11

6:10 p.m.-11:15 a.m.

2 stops20h 05m

C$ 441

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YYZ Toronto Pearson Intl

LASYYZ

Las Vegas Harry Reid Intl

Sat 10/10

12:59 a.m.-2:24 p.m.

1 stop10h 25m

Toronto Pearson Intl

Sat 17/10

8:35 p.m.-10:22 p.m.

Nonstop4h 47m

C$ 451

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YYZ Toronto Pearson Intl

LASYYZ

Las Vegas Harry Reid Intl

Mon 14/9

5:07 p.m.-7:00 a.m.

1 stop10h 53m

Toronto Pearson Intl

Sat 19/9

8:35 p.m.-10:22 p.m.

Nonstop4h 47m

C$ 458

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

LASYKF

Las Vegas Harry Reid Intl

Fri 18/9

4:35 p.m.-7:50 p.m.

2 stops24h 15m

Toronto Region of Waterloo Intl

Mon 21/9

8:40 p.m.-12:30 p.m.

2 stops18h 50m

C$ 461

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

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.-5:15 p.m.

1 stop23h 35m

C$ 466

Las VegasToronto

LAS Las Vegas Harry Reid Intl - YKF Toronto Region of Waterloo Intl

LASYKF

Las Vegas Harry Reid Intl

Thu 27/8

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

1 stop8h 20m

Toronto Region of Waterloo Intl

Sat 29/8

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

1 stop23h 35m

C$ 466

Las VegasHamilton

LAS Las Vegas Harry Reid Intl - YHM Hamilton

LASYHM

Las Vegas Harry Reid Intl

Thu 24/9

5:35 p.m.-5:15 p.m.

2 stops20h 40m

Hamilton

Sun 27/9

6:10 p.m.-3:45 p.m.

2 stops24h 35m

C$ 468

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

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$ 399). Flying from Las Vegas to Region of Ontario in June is currently the most expensive (average of C$ 600). 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 6 August 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 43% on flights from Las Vegas to Region of Ontario by exploring options for tickets in the evening.

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 6 August 2026.

The most flights from LAS to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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

Airfare is typical for this route at the moment.
Las Vegas to Region of Ontario flights typically cost between C$ 308 and C$ 659 in September.
The cheapest round-trip price found within the last 5 days was C$ 358 on Porter Airlines (18 Sep-25 Sep).

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

Booking 66 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.

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 6 August 2026.
Get a feel of what it's like to fly with Porter Airlines,WestJet, andAir Canada 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
450 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
450 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,426 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,430 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Boarding

8.2

Entertainment

6.9

Food

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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, Air Canada, and United Airlines 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 3h 20m. The distance between Las Vegas and Region of Ontario is about 3056 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$ 106 and Air Canada from C$ 125 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 - Hamilton.

  • 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 (89%) and WestJet (89%).

  • 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$ 402, our data indicates the cheapest price to be C$ 159. The most popular route (Las Vegas Harry Reid Intl - Toronto Pearson Intl), is priced around C$ 361.

  • 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$ 399). Flying from Las Vegas to Region of Ontario in June is currently the most expensive (average of C$ 600). 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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 143AverageC$ 391FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 194AverageC$ 478FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 299AverageC$ 496FlexibilityNo cancel feeOn-time52%
Search Porter Airlines 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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