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Cheap flights from Ontario to the United States from C$ 137

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to USA

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to USA
Explore the most affordable flight options available from Ontario to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 December 2025.

Wed 31/128:30 p.m.YYZ - MCO
Nonstop3h 00mAir Canada
Wed 14/110:20 a.m.MCO - YYZ
Nonstop2h 50mAir Canada
Deal found 29/12C$ 352
Tue 30/129:00 p.m.YYZ - MCO
1 stop11h 48mUnited Airlines
Mon 12/13:00 p.m.MCO - YYZ
1 stop6h 21mUnited Airlines
Deal found 28/12C$ 358
Wed 31/125:00 p.m.YYZ - MCO
1 stop6h 02mAir Canada
Tue 13/18:30 a.m.MCO - YYZ
1 stop7h 10mAir Canada
Deal found 29/12C$ 360
Wed 31/1211:00 a.m.YYZ - FLL
1 stop7h 46mUnited Airlines
Thu 8/112:27 p.m.FLL - YYZ
1 stop8h 54mUnited Airlines
Deal found 29/12C$ 369
Wed 31/127:15 a.m.YYZ - MCO
1 stop12h 33mMultiple Airlines
Sun 11/111:20 a.m.MCO - YYZ
Nonstop3h 00mMultiple Airlines
Deal found 28/12C$ 372
Wed 31/1212:14 p.m.YYZ - FLL
1 stop9h 36mDelta
Tue 13/13:40 p.m.FLL - YYZ
1 stop7h 16mDelta
Deal found 30/12C$ 373
Wed 31/1212:14 p.m.YYZ - MCO
1 stop8h 47mDelta
Mon 12/15:30 p.m.MCO - YYZ
1 stop6h 28mDelta
Deal found 29/12C$ 373
Wed 31/129:00 p.m.YYZ - FLL
1 stop14h 57mUnited Airlines
Wed 7/16:15 a.m.FLL - YYZ
1 stop16h 22mUnited Airlines
Deal found 30/12C$ 376
Wed 31/125:00 p.m.YYZ - MCO
1 stop6h 02mAir Canada
Mon 12/18:00 a.m.MCO - YYZ
Nonstop2h 50mAir Canada
Deal found 29/12C$ 376
Wed 31/123:15 p.m.YYZ - LGA
Nonstop1h 40mPorter Airlines
Sun 1/29:00 p.m.LGA - YYZ
Nonstop1h 44mPorter Airlines
Deal found 27/12C$ 384
Wed 31/126:00 a.m.YYZ - FLL
1 stop14h 59mAmerican Airlines
Wed 7/14:15 p.m.FLL - YYZ
1 stop18h 53mAmerican Airlines
Deal found 30/12C$ 389
Wed 31/124:06 p.m.YYZ - FLL
1 stop6h 05mAmerican Airlines
Mon 5/18:24 p.m.FLL - YYZ
1 stop13h 55mAmerican Airlines
Deal found 28/12C$ 390

Find flight deals from Ontario to USA

Keep the following information in mind while searching for Ontario to USA flight deals. Data was last updated 30 December 2025.

Round-trip from

C$ 204

One-way from

C$ 137

Popular in

December

Cheapest in

January

Average price

C$ 417

Good round-trip deal

C$ 228 or less

Good one-way deal

C$ 59 or less
Flair Airlines
  • Flair Airlines
  • 28/3-8/4
  • Nonstop
  • 6h 40m total
  • Ontario to USA
Search Deals
Flair Airlines
  • Flair Airlines
  • 2/3
  • Nonstop
  • 3h 10m total
  • Ontario to USA
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ontario to USA.
Search Deals
Price to beat on a one-way flight from Ontario to USA.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to USA 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 30 December 2025.
Use the filters below to find and compare flights from Ontario to the United States that are best for you.

Fly from

Ontario

Fly to

USA

Route

Depart

Return

Price

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Thu 26/2

1:30 p.m.-9:33 p.m.

1 stop11h 03m

Las Vegas Harry Reid Intl

Sat 28/2

8:00 a.m.-5:58 a.m.

2 stops18h 58m

C$ 237

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 17/2

1:30 p.m.-9:33 p.m.

1 stop11h 03m

Las Vegas Harry Reid Intl

Wed 25/2

1:10 p.m.-6:13 a.m.

2 stops14h 03m

C$ 250

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 10/2

4:10 p.m.-8:32 p.m.

1 stop7h 22m

Las Vegas Harry Reid Intl

Tue 17/2

11:22 p.m.-11:48 a.m.

1 stop9h 26m

C$ 259

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 16/1

12:30 p.m.-8:15 p.m.

2 stops34h 45m

Las Vegas Harry Reid Intl

Wed 21/1

1:10 p.m.-5:58 a.m.

2 stops13h 48m

C$ 263

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 26/1

7:55 p.m.-10:02 p.m.

Nonstop5h 07m

Las Vegas Harry Reid Intl

Fri 30/1

11:05 p.m.-6:20 a.m.

Nonstop4h 15m

C$ 265

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 4/2

10:00 a.m.-8:32 p.m.

2 stops13h 32m

Las Vegas Harry Reid Intl

Wed 4/2

11:30 p.m.-4:02 p.m.

1 stop13h 32m

C$ 265

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 3/6

9:10 a.m.-11:04 a.m.

Nonstop4h 54m

Las Vegas Harry Reid Intl

Sun 7/6

11:30 p.m.-6:55 a.m.

Nonstop4h 25m

C$ 267

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sun 3/5

11:00 a.m.-12:30 p.m.

Nonstop1h 30m

Newark

Sat 9/5

12:00 p.m.-1:40 p.m.

Nonstop1h 40m

C$ 272

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sun 3/5

7:45 a.m.-9:15 a.m.

Nonstop1h 30m

Newark

Sat 9/5

10:00 a.m.-11:40 a.m.

Nonstop1h 40m

C$ 274

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 11/2

11:00 a.m.-6:30 p.m.

1 stop10h 30m

Las Vegas Harry Reid Intl

Tue 17/2

6:30 a.m.-5:49 p.m.

1 stop8h 19m

C$ 274

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/12

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Best time to book a flight from Ontario to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Ontario 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 Ontario to the United States

What is the cheapest month to book a flight from Region of Ontario to USA?

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 89). Flying from Region of Ontario to USA in December is currently the most expensive (average of C$ 170). 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 ON to US?

Find hourly flight availability from Ontario to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 December 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 26% on flights from Region of Ontario to USA by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to USA. Price data was last updated on 27 December 2025.

Travelers seeking maximum savings on their Region of Ontario to USA flight should consider departing on Sunday mornings 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.

Weekly flight availability from Region of Ontario to USA

Explore weekly flight availability from Ontario to USA. 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 30 December 2025.

The most flights from CAON to US0 are scheduled on a Tuesday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

Related info for your journey

Find useful and relevant information for your journey from Ontario to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Departing from Region of Ontario to USA will take you 5h 07m. There are 3119 km between Region of Ontario and USA. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapest airline one-way is Air Transat, with whom users have recently found tickets for as low as C$ 42. However, be on the lookout for offers from WestJet and Flair Airlines, as they are both options that can get you from Region of Ontario to USA for a low price.

  • Can I find deals for flights from Ontario to USA that include hotel bookings?

    Yes. In addition to deals on Ontario to USA flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to USA.

  • Can I find deals for business class flights from Ontario to USA?

    Yes. Cheapflights offers flight deals from Ontario to USA 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 Region of Ontario to USA?

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 89). Flying from Region of Ontario to USA in December is currently the most expensive (average of C$ 170). 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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Alternative routes for Ontario to USA

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Ontario to USA

Discover the top 10 airlines that operate flights from Ontario to USA. 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 30 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 79AverageC$ 264FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Flair AirlinesCheapestC$ 128AverageC$ 234FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
WestJetCheapestC$ 156AverageC$ 414FlexibilityNo cancel feeOn-time60%
Search WestJet flights
American AirlinesCheapestC$ 176AverageC$ 442FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 177AverageC$ 447FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 177AverageC$ 519FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 185AverageC$ 538FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 188AverageC$ 377FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 234AverageC$ 434FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 281AverageC$ 701FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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 Ontario to USA?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to USA from Ontario today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to USA 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 Ontario to USA with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to USA with no change fees.

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

Not ready to book yet? You can track prices for flights from Ontario to USA on Cheapflights with our Price Alert feature and get notified when better prices are available.

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