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Cheap flights from Ontario to the United States from C$ 135

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
21 Mar — 28 Mar1
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 19 February 2026.

Wed 15/46:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Wed 22/410:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 16/2C$ 204
Tue 10/38:00 a.m.
YUL
-
FLL
Nonstop3h 45m
Porter Airlines
Thu 26/312:45 p.m.
FLL
-
YUL
Nonstop3h 35m
Porter Airlines
Deal found 15/2C$ 204
Mon 23/27:00 a.m.
YYZ
-
FLL
Nonstop3h 25m
Flair Airlines
Thu 26/28:05 p.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 16/2C$ 205
Sat 7/33:40 p.m.
YYZ
-
FLL
Nonstop3h 25m
Flair Airlines
Sat 14/38:05 p.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 16/2C$ 206
Mon 9/37:00 a.m.
YYZ
-
FLL
Nonstop3h 25m
Flair Airlines
Fri 13/38:05 p.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 17/2C$ 208
Wed 25/23:40 p.m.
YYZ
-
FLL
Nonstop3h 25m
Flair Airlines
Wed 4/38:05 p.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 18/2C$ 209
Sun 1/37:45 a.m.
YYZ
-
LAS
2 stops15h 31m
WestJet
Tue 10/31:10 p.m.
LAS
-
YYZ
2 stops14h 03m
WestJet
Deal found 15/2C$ 210
Sun 8/310:05 a.m.
YYZ
-
FLL
Nonstop3h 25m
Flair Airlines
Sat 14/38:05 p.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 16/2C$ 212
Mon 23/38:00 a.m.
YUL
-
FLL
Nonstop3h 45m
Porter Airlines
Thu 26/312:45 p.m.
FLL
-
YUL
Nonstop3h 35m
Porter Airlines
Deal found 17/2C$ 212
Fri 10/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Tue 14/48:05 a.m.
LAS
-
YYZ
2 stops12h 30m
WestJet
Deal found 18/2C$ 212
Mon 1/61:30 p.m.
YYZ
-
FLL
Nonstop3h 15m
Multiple Airlines
Tue 9/610:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Multiple Airlines
Deal found 17/2C$ 213
Mon 9/37:10 a.m.
YYZ
-
MCO
Nonstop3h 10m
Flair Airlines
Thu 12/311:20 a.m.
MCO
-
YYZ
Nonstop3h 00m
Flair Airlines
Deal found 18/2C$ 213

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 19 February 2026.

Round-trip from

C$ 204

One-way from

C$ 135

Popular in

December

Cheapest in

September

Average price

C$ 328

Good round-trip deal

C$ 230 or less

Good one-way deal

C$ 154 or less
Flair Airlines
  • Flair Airlines
  • 15/4-22/4
  • Nonstop
  • 6h 35m total
  • Ontario to USA
Search Deals
Flair Airlines
  • Flair Airlines
  • 4/3
  • Nonstop
  • 3h 10m total
  • Ontario to USA
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 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 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 19 February 2026.
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

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Fri 27/3

7:00 a.m.-11:00 a.m.

1 stop4h 00m

Newark

Tue 31/3

6:10 p.m.-7:50 p.m.

Nonstop1h 40m

C$ 257

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Thu 26/3

12:00 p.m.-5:30 p.m.

1 stop5h 30m

Newark

Sun 29/3

2:45 p.m.-4:25 p.m.

Nonstop1h 40m

C$ 260

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sun 22/3

8:40 a.m.-10:10 a.m.

Nonstop1h 30m

Newark

Mon 23/3

8:55 a.m.-10:35 a.m.

Nonstop1h 40m

C$ 262

TorontoOrlando

YYZ - MCO

YYZMCO

Toronto Pearson Intl

Mon 6/4

1:00 p.m.-9:58 p.m.

1 stop8h 58m

Orlando

Tue 14/4

4:48 p.m.-11:59 p.m.

1 stop7h 11m

C$ 265

TorontoOrlando

YYZ - MCO

YYZMCO

Toronto Pearson Intl

Tue 14/4

10:45 a.m.-5:42 p.m.

1 stop6h 57m

Orlando

Fri 17/4

7:38 a.m.-8:44 p.m.

1 stop13h 06m

C$ 266

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Thu 2/4

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

Nonstop1h 30m

Newark

Mon 6/4

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

Nonstop1h 40m

C$ 273

MontrealFort Lauderdale

YUL - FLL

YULFLL

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

4:20 p.m.-8:10 p.m.

Nonstop3h 50m

Fort Lauderdale

Tue 31/3

7:00 a.m.-10:06 p.m.

1 stop15h 06m

C$ 276

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Mon 23/3

1:30 p.m.-3:00 p.m.

Nonstop1h 30m

Newark

Sun 29/3

10:55 a.m.-4:43 p.m.

1 stop5h 48m

C$ 276

MontrealFort Lauderdale

YUL - FLL

YULFLL

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

9:45 a.m.-8:13 p.m.

1 stop10h 28m

Fort Lauderdale

Sat 16/5

8:00 a.m.-4:10 p.m.

1 stop8h 10m

C$ 279

TorontoOrlando

YYZ - MCO

YYZMCO

Toronto Pearson Intl

Wed 25/3

6:10 a.m.-7:49 p.m.

1 stop13h 39m

Orlando

Fri 3/4

9:00 a.m.-10:36 p.m.

1 stop13h 36m

C$ 280

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/2

Showing 1-10 of 60 results
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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$ 198). 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 19 February 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 29% 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 17 February 2026.

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 19 February 2026.

The most flights from CAON to US0 are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 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 3h 50m. There are 2229 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$ 198). 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.
Vancouver Intl to Pearson Intl flights
Vancouver Intl to Hamilton flights
Vancouver Intl to Toronto Island flights
Calgary to Pearson Intl flights
Abbotsford to Pearson Intl flights
Calgary to Toronto Island flights
Vancouver Intl to Region of Waterloo Intl flights
Pearson Intl to Vancouver Intl flights
Calgary to Hamilton flights
Calgary to Region of Waterloo Intl flights
Pierre Elliott Trudeau Intl to Cancún flights
Abbotsford to Hamilton flights
Hamilton to Vancouver Intl flights
Abbotsford to Region of Waterloo Intl flights
Pearson Intl to Cancún flights
Pierre Elliott Trudeau Intl to Vancouver Intl flights
Pearson Intl to Abbotsford flights
Toronto Island to Vancouver Intl flights
Edmonton to Vancouver Intl flights
Pearson Intl to Calgary flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Vancouver Intl to Cancún flights
Pearson Intl to John F Kennedy Intl flights
Vancouver Intl to Edmonton flights
Calgary to Vancouver Intl flights
Vancouver Intl to Calgary flights
Toronto Island to Newark flights
Pearson Intl to Mexico City flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Miami flights
Pearson Intl to Newark flights
Pearson Intl to Fort Lauderdale flights
Region of Waterloo Intl to Vancouver Intl flights
Vancouver Intl to Pierre Elliott Trudeau Intl flights
Pearson Intl to Las Vegas flights
Toronto Island to Calgary flights
Pierre Elliott Trudeau Intl to Calgary flights
Ottawa to Vancouver Intl flights
Hamilton to Calgary flights
Toronto Island to Cancún flights
Vancouver Intl to Las Vegas flights
Pearson Intl to Orlando flights
Pearson Intl to Halifax flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Mexico City flights
Québec City to Cancún flights
Vancouver Intl to Puerto Vallarta flights
Vancouver Intl to Los Angeles flights
Pearson Intl to Los Angeles flights

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 19 February 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 77AverageC$ 237FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Flair AirlinesCheapestC$ 83AverageC$ 261FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Air CanadaCheapestC$ 122AverageC$ 534FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 140AverageC$ 430FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 156AverageC$ 408FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 162AverageC$ 431FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 176AverageC$ 530FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 180AverageC$ 388FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 227AverageC$ 438FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJet EncoreCheapestC$ 280AverageC$ 700FlexibilityNo 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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