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Cheap flights from Ontario to the United States from C$ 147

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
3 May — 10 May1
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 3 April 2026.

Mon 13/48:00 a.m.
YUL
-
FLL
Nonstop3h 46m
Porter Airlines
Fri 17/412:50 p.m.
FLL
-
YUL
Nonstop3h 38m
Porter Airlines
Deal found 1/4C$ 228
Fri 13/119:20 a.m.
YUL
-
FLL
Nonstop3h 50m
Porter Airlines
Sun 22/112:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 31/3C$ 234
Mon 9/119:20 a.m.
YUL
-
FLL
Nonstop3h 50m
Porter Airlines
Fri 13/112:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 31/3C$ 235
Sun 24/57:30 a.m.
YYZ
-
FLL
Nonstop3h 15m
WestJet
Sun 31/511:40 a.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 1/4C$ 237
Thu 24/129:20 a.m.
YUL
-
FLL
Nonstop3h 50m
Porter Airlines
Mon 4/12:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 30/3C$ 237
Sat 23/51:30 p.m.
YYZ
-
FLL
Nonstop3h 15m
WestJet
Sat 30/55:35 p.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 1/4C$ 238
Sun 24/56:30 a.m.
YYZ
-
FLL
Nonstop3h 20m
Flair Airlines
Sun 31/510:50 a.m.
FLL
-
YYZ
Nonstop3h 15m
Flair Airlines
Deal found 31/3C$ 239
Mon 13/48:00 a.m.
YUL
-
FLL
Nonstop3h 46m
Porter Airlines
Thu 16/411:40 a.m.
FLL
-
YUL
1 stop6h 45m
Porter Airlines
Deal found 2/4C$ 239
Sat 19/129:20 a.m.
YUL
-
FLL
Nonstop3h 50m
Porter Airlines
Sun 3/12:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 29/3C$ 241
Thu 28/51:30 p.m.
YYZ
-
FLL
Nonstop3h 15m
WestJet
Sun 31/511:40 a.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 30/3C$ 242
Wed 23/129:50 a.m.
YUL
-
FLL
2 stops10h 04m
Porter Airlines
Thu 31/122:10 p.m.
FLL
-
YUL
Nonstop3h 25m
Porter Airlines
Deal found 1/4C$ 243
Mon 20/411:15 a.m.
YYZ
-
FLL
Nonstop3h 28m
WestJet
Fri 24/46:55 p.m.
FLL
-
YYZ
Nonstop3h 20m
WestJet
Deal found 1/4C$ 245

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 3 April 2026.

Round-trip from

C$ 228

One-way from

C$ 147

Popular in

December

Cheapest in

September

Average price

C$ 331

Good round-trip deal

C$ 269 or less

Good one-way deal

C$ 167 or less
Porter Airlines
  • Porter Airlines
  • 13/4-17/4
  • Nonstop
  • 7h 24m total
  • Ontario to USA
Search Deals
Flair Airlines
  • Flair Airlines
  • 27/4
  • Nonstop
  • 3h 20m total
  • Ontario to USA
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 9 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 April 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 3 April 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
Quickest round-trip

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sun 21/6

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Newark

Fri 26/6

8:25 p.m.-10:00 p.m.

Nonstop1h 35m

C$ 257

TorontoNewark

YYZ - EWR

YYZEWR

Toronto Pearson Intl

Thu 16/4

7:30 a.m.-9:12 a.m.

Nonstop1h 42m

Newark

Tue 21/4

9:57 a.m.-11:43 a.m.

Nonstop1h 46m

C$ 271

TorontoNewark

YYZ - EWR

YYZEWR

Toronto Pearson Intl

Thu 14/5

7:30 a.m.-9:12 a.m.

Nonstop1h 42m

Newark

Sun 17/5

7:36 a.m.-9:19 a.m.

Nonstop1h 43m

C$ 271

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Thu 3/9

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Newark

Sun 13/9

9:10 a.m.-10:45 a.m.

Nonstop1h 35m

C$ 291

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Wed 2/9

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Newark

Thu 10/9

6:25 a.m.-8:00 a.m.

Nonstop1h 35m

C$ 291

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Mon 31/8

8:25 a.m.-9:55 a.m.

Nonstop1h 30m

Newark

Mon 14/9

11:20 a.m.-12:55 p.m.

Nonstop1h 35m

C$ 291

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sat 5/9

9:10 a.m.-10:40 a.m.

Nonstop1h 30m

Newark

Sun 13/9

5:35 p.m.-10:20 p.m.

1 stop4h 45m

C$ 292

MontrealNew York

YUL - LGA

YULLGA

Montreal Pierre Elliott Trudeau Intl

Thu 16/4

2:29 p.m.-4:01 p.m.

Nonstop1h 32m

New York LaGuardia

Sun 19/4

7:00 a.m.-8:40 a.m.

Nonstop1h 40m

C$ 296

TorontoNewark

YYZ - EWR

YYZEWR

Toronto Pearson Intl

Fri 4/9

7:30 a.m.-9:13 a.m.

Nonstop1h 43m

Newark

Sun 13/9

6:00 a.m.-10:04 a.m.

1 stop4h 04m

C$ 299

TorontoNewark

YTZ - EWR

YTZEWR

Toronto Island

Sun 19/4

12:30 p.m.-2:00 p.m.

Nonstop1h 30m

Newark

Wed 29/4

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

1 stop4h 18m

C$ 299

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

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, March is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 120). Flying from Region of Ontario to USA in February is currently the most expensive (average of C$ 205). 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 3 April 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 28% 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 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. Monday 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 3 April 2026.

The most flights from CAON to US0 are scheduled on a Wednesday (23 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (17 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 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$ 43. 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, March is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 120). Flying from Region of Ontario to USA in February is currently the most expensive (average of C$ 205). 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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Pierre Elliott Trudeau Intl to Miami flights
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Vancouver Intl to Las Vegas flights
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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 3 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 115AverageC$ 541FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Flair AirlinesCheapestC$ 117AverageC$ 345FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
WestJetCheapestC$ 128AverageC$ 421FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 141AverageC$ 438FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 143AverageC$ 491FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 180AverageC$ 537FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 217AverageC$ 457FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 236AverageC$ 459FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Alaska AirlinesCheapestC$ 274AverageC$ 456FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 286AverageC$ 713FlexibilityNo 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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