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Cheap flights from Ontario to the United States from C$ 170

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
29 Aug — 5 Sep1
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 July 2026.

Mon 12/109:30 a.m.
YYZ
-
FLL
Nonstop3h 14m
Porter Airlines
Fri 16/101:40 p.m.
FLL
-
YYZ
Nonstop3h 15m
Porter Airlines
Deal found 25/7C$ 244
Mon 12/109:30 a.m.
YYZ
-
FLL
Nonstop3h 14m
Porter Airlines
Mon 19/1011:45 a.m.
FLL
-
YYZ
2 stops10h 35m
Porter Airlines
Deal found 26/7C$ 248
Sun 13/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Sun 20/910:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 27/7C$ 249
Fri 11/91:30 p.m.
YYZ
-
FLL
Nonstop3h 15m
WestJet
Fri 18/95:35 p.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 28/7C$ 251
Sun 6/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Sat 12/910:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 28/7C$ 253
Sun 6/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Multiple Airlines
Fri 11/95:35 p.m.
FLL
-
YYZ
Nonstop3h 20m
Multiple Airlines
Deal found 28/7C$ 255
Thu 10/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Thu 17/910:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 27/7C$ 256
Tue 1/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Multiple Airlines
Thu 10/91:40 p.m.
FLL
-
YYZ
Nonstop3h 15m
Multiple Airlines
Deal found 27/7C$ 258
Sun 6/97:30 a.m.
YYZ
-
FLL
Nonstop3h 15m
WestJet
Fri 11/95:35 p.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 28/7C$ 259
Tue 1/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Sat 12/910:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 26/7C$ 261
Sat 12/96:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Sat 19/910:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 29/7C$ 262
Wed 25/117:00 a.m.
YYZ
-
LGA
Nonstop1h 40m
Porter Airlines
Sat 28/119:40 a.m.
LGA
-
YYZ
Nonstop1h 42m
Porter Airlines
Deal found 29/7C$ 304

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 July 2026.

Round-trip from

C$ 244

One-way from

C$ 170

Popular in

August

Cheapest in

November

Average price

C$ 487

Good round-trip deal

C$ 265 or less

Good one-way deal

C$ 160 or less
Porter Airlines
  • Porter Airlines
  • 12/10-16/10
  • Nonstop
  • 6h 29m total
  • Ontario to USA
Search Deals
Flair Airlines
  • Flair Airlines
  • 17/9
  • Nonstop
  • 3h 20m total
  • Ontario to USA
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 2026.
Use the filters below to find and compare flights from Ontario to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoFort Lauderdale

YYZ - FLL

YYZFLL

Toronto Pearson Intl

Fri 21/8

9:00 p.m.-11:14 a.m.

1 stop14h 14m

Fort Lauderdale

Tue 25/8

10:35 p.m.-1:44 a.m.

Nonstop3h 09m

C$ 275

TorontoFort Lauderdale

YYZ - FLL

YYZFLL

Toronto Pearson Intl

Tue 13/10

7:30 a.m.-8:58 p.m.

1 stop13h 28m

Fort Lauderdale

Tue 20/10

10:35 p.m.-1:40 a.m.

Nonstop3h 05m

C$ 290

TorontoFort Lauderdale

YYZ - FLL

YYZFLL

Toronto Pearson Intl

Sat 3/10

7:00 a.m.-4:54 p.m.

1 stop9h 54m

Fort Lauderdale

Mon 19/10

10:35 p.m.-1:40 a.m.

Nonstop3h 05m

C$ 317

TorontoFort Lauderdale

YYZ - FLL

YYZFLL

Toronto Pearson Intl

Mon 12/10

6:00 a.m.-3:39 p.m.

1 stop9h 39m

Fort Lauderdale

Sat 17/10

7:00 a.m.-4:12 p.m.

1 stop9h 12m

C$ 321

MontrealNew York

YUL - LGA

YULLGA

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

7:50 p.m.-9:33 p.m.

Nonstop1h 43m

New York LaGuardia

Wed 4/11

7:00 a.m.-8:32 a.m.

Nonstop1h 32m

C$ 332

TorontoFort Lauderdale

YYZ - FLL

YYZFLL

Toronto Pearson Intl

Wed 2/12

6:05 a.m.-12:55 p.m.

1 stop6h 50m

Fort Lauderdale

Sat 12/12

2:35 p.m.-11:59 p.m.

1 stop9h 24m

C$ 356

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Wed 26/8

8:30 a.m.-10:00 a.m.

Nonstop1h 30m

Newark

Mon 31/8

10:40 a.m.-4:33 p.m.

1 stop5h 53m

C$ 358

MontrealNew York

YUL - LGA

YULLGA

Montreal Pierre Elliott Trudeau Intl

Thu 29/10

7:50 p.m.-9:33 p.m.

Nonstop1h 43m

New York LaGuardia

Sun 1/11

7:30 a.m.-4:15 p.m.

1 stop8h 45m

C$ 359

MontrealNew York

YUL - LGA

YULLGA

Montreal Pierre Elliott Trudeau Intl

Thu 29/10

7:50 p.m.-9:33 p.m.

Nonstop1h 43m

New York LaGuardia

Wed 4/11

1:59 p.m.-11:57 p.m.

1 stop9h 58m

C$ 359

TorontoNew York

YTZ - LGA

YTZLGA

Toronto Island

Fri 23/10

8:30 a.m.-2:36 p.m.

1 stop6h 06m

New York LaGuardia

Mon 26/10

1:10 p.m.-5:56 p.m.

1 stop4h 46m

C$ 360

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 404). Flying from Region of Ontario to USA in July is currently the most expensive (average of C$ 531). 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 July 2026.

Unlike at noon, 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.

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 July 2026.

The most flights from CAON to US0 are scheduled on a Wednesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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

To ensure you get the cheapest price possible for a flight from Region of Ontario to USA, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 28 March 2026.

Travelers seeking maximum savings on their Region of Ontario to USA flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 1h 30m. There are 539 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$ 43. However, be on the lookout for offers from WestJet and United 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, January is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 404). Flying from Region of Ontario to USA in July is currently the most expensive (average of C$ 531). 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 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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 121AverageC$ 607FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 161AverageC$ 496FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 180AverageC$ 504FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Flair AirlinesCheapestC$ 200AverageC$ 339FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
JetBlueCheapestC$ 209AverageC$ 231FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapestC$ 222AverageC$ 596FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 234AverageC$ 495FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 239AverageC$ 491FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 248AverageC$ 639FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
APG AirlinesCheapestC$ 552AverageC$ 672FlexibilityNo cancel feeOn-timeN/A
Search APG 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 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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