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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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
5 Apr — 12 Apr1
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 6 March 2026.

Sun 12/47:15 a.m.
YYZ
-
MCO
1 stop5h 35m
Porter Airlines
Wed 22/411:20 a.m.
MCO
-
YYZ
Nonstop2h 56m
Porter Airlines
Deal found 2/3C$ 214
Mon 13/47:10 a.m.
YYZ
-
MCO
Nonstop3h 10m
Flair Airlines
Wed 22/411:20 a.m.
MCO
-
YYZ
Nonstop3h 00m
Flair Airlines
Deal found 3/3C$ 217
Tue 21/49:40 a.m.
YYZ
-
LAS
2 stops11h 33m
WestJet
Thu 23/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 2/3C$ 217
Mon 20/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Thu 23/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 1/3C$ 219
Fri 10/48:20 p.m.
YYZ
-
MCO
Nonstop3h 00m
Porter Airlines
Wed 15/411:20 a.m.
MCO
-
YYZ
Nonstop2h 56m
Porter Airlines
Deal found 2/3C$ 220
Sun 19/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Wed 22/411:20 a.m.
LAS
-
YYZ
1 stop8h 51m
WestJet
Deal found 1/3C$ 220
Fri 24/412:30 p.m.
YYZ
-
LAS
1 stop10h 46m
WestJet
Thu 30/44:35 p.m.
LAS
-
YYZ
1 stop9h 35m
WestJet
Deal found 1/3C$ 221
Mon 23/37:15 a.m.
YYZ
-
MCO
1 stop5h 43m
Porter Airlines
Thu 26/38:30 a.m.
MCO
-
YYZ
Nonstop2h 56m
Porter Airlines
Deal found 4/3C$ 223
Tue 22/129:50 a.m.
YUL
-
FLL
2 stops10h 04m
Porter Airlines
Tue 5/12:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 5/3C$ 223
Sun 19/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Fri 24/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 1/3C$ 223
Mon 6/48:00 a.m.
YUL
-
FLL
Nonstop3h 46m
Porter Airlines
Mon 20/412:50 p.m.
FLL
-
YUL
Nonstop3h 38m
Porter Airlines
Deal found 3/3C$ 224
Fri 10/43:00 p.m.
YYZ
-
LAS
1 stop9h 33m
WestJet
Mon 13/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 2/3C$ 224

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 6 March 2026.

Round-trip from

C$ 214

One-way from

C$ 137

Popular in

December

Cheapest in

September

Average price

C$ 321

Good round-trip deal

C$ 262 or less

Good one-way deal

C$ 150 or less
Porter Airlines
  • Porter Airlines
  • 12/4-22/4
  • 1 total stop
  • 8h 31m total
  • Ontario to USA
Search Deals
Porter Airlines
  • Porter Airlines
  • 31/3
  • Nonstop
  • 3h 03m total
  • Ontario to USA
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 18 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 March 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 6 March 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

TorontoNewark

YYZ - EWR

YYZEWR

Toronto Pearson Intl

Wed 27/5

7:30 a.m.-9:05 a.m.

Nonstop1h 35m

Newark

Mon 8/6

8:29 p.m.-10:23 p.m.

Nonstop1h 54m

C$ 273

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Thu 19/3

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

Nonstop1h 30m

Newark

Tue 7/4

3:45 p.m.-8:03 p.m.

1 stop4h 18m

C$ 284
Quickest round-trip

TorontoNew York

YYZ - LGA

YYZLGA

Toronto Pearson Intl

Thu 9/4

7:20 a.m.-8:55 a.m.

Nonstop1h 35m

New York LaGuardia

Thu 23/4

9:55 a.m.-11:35 a.m.

Nonstop1h 40m

C$ 291

TorontoNew York

YYZ - JFK

YYZJFK

Toronto Pearson Intl

Wed 15/4

6:29 p.m.-8:30 p.m.

Nonstop2h 01m

New York John F Kennedy Intl

Wed 22/4

7:08 a.m.-3:20 p.m.

1 stop8h 12m

C$ 292

TorontoNew York

YYZ - JFK

YYZJFK

Toronto Pearson Intl

Fri 27/3

6:14 p.m.-8:17 p.m.

Nonstop2h 03m

New York John F Kennedy Intl

Fri 10/4

8:56 p.m.-10:58 p.m.

Nonstop2h 02m

C$ 292

TorontoOrlando

YYZ - MCO

YYZMCO

Toronto Pearson Intl

Wed 6/5

7:43 p.m.-12:59 a.m.

1 stop5h 16m

Orlando

Thu 14/5

7:15 a.m.-3:46 p.m.

1 stop8h 31m

C$ 298

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Wed 8/4

7:35 a.m.-5:29 p.m.

2 stops9h 54m

Newark

Sat 11/4

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

1 stop5h 48m

C$ 299

MontrealFort Lauderdale

YUL - FLL

YULFLL

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:10 a.m.-2:53 p.m.

1 stop8h 43m

Fort Lauderdale

Tue 21/4

2:35 p.m.-10:06 p.m.

1 stop7h 31m

C$ 299

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Thu 2/4

3:00 p.m.-4:30 p.m.

Nonstop1h 30m

Newark

Wed 8/4

3:45 p.m.-8:03 p.m.

1 stop4h 18m

C$ 299

MontrealFort Lauderdale

YUL - FLL

YULFLL

Montreal Pierre Elliott Trudeau Intl

Sat 11/4

9:15 a.m.-4:09 p.m.

1 stop6h 54m

Fort Lauderdale

Mon 20/4

7:00 a.m.-1:09 p.m.

1 stop6h 09m

C$ 299

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

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, 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 6 March 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 21 February 2026.

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

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. Most flights are nonstop.

  • 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.
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Pearson Intl to Vancouver Intl flights
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Region of Waterloo Intl to Vancouver Intl flights
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Halifax to Toronto Island flights
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Pearson Intl to Los Angeles flights
Toronto Island to Calgary 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 6 March 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 77AverageC$ 245FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Flair AirlinesCheapestC$ 83AverageC$ 262FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Air CanadaCheapestC$ 117AverageC$ 538FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 140AverageC$ 437FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 147AverageC$ 401FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 156AverageC$ 406FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 163AverageC$ 429FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 176AverageC$ 535FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 241AverageC$ 440FlexibilityNo 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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