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Cheap flights from the United States to Ontario from C$ 112

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
4 Aug — 11 Aug1
1 adult

Cheap flight deals from USA to Ontario

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

Round-trip from

C$ 222

One-way from

C$ 112

Popular in

August

Cheapest in

January

Average price

C$ 360

Good round-trip deal

C$ 106 or less

Good one-way deal

C$ 52 or less
Flair Airlines
  • Flair Airlines
  • 21/8-24/8
  • Nonstop
  • 3h 50m total
  • USA to Ontario
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Flair Airlines
  • Flair Airlines
  • 4/9
  • Nonstop
  • 1h 45m total
  • USA to Ontario
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 114 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from USA to Ontario.
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Price to beat on a one-way flight from USA to Ontario.
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Find flight deals from USA to Ontario

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

Thu 21/810:45 a.m.JFK - YYZ
Nonstop1h 45mFlair Airlines
Sun 24/87:55 a.m.YYZ - JFK
Nonstop2h 05mFlair Airlines
Deal found 28/7C$ 222
Sun 14/911:10 p.m.LAX - YYZ
Nonstop4h 49mMultiple Airlines
Wed 17/910:40 a.m.YYZ - LAX
Nonstop5h 20mMultiple Airlines
Deal found 29/7C$ 234
Tue 18/1111:50 a.m.LAX - YYZ
1 stop9h 48mWestJet
Sun 30/117:45 a.m.YYZ - LAX
2 stops13h 47mWestJet
Deal found 28/7C$ 240
Sat 6/910:30 p.m.LAX - YYZ
1 stop9h 09mAir Canada
Sat 13/96:35 p.m.YYZ - LAX
Nonstop5h 18mAir Canada
Deal found 29/7C$ 246
Wed 3/96:15 a.m.LGA - YYZ
Nonstop1h 40mPorter Airlines
Wed 22/102:50 p.m.YYZ - LGA
Nonstop1h 40mPorter Airlines
Deal found 30/7C$ 257
Sat 13/910:30 a.m.JFK - YYZ
Nonstop1h 43mAir Canada
Sat 20/98:00 a.m.YYZ - JFK
Nonstop1h 47mAir Canada
Deal found 29/7C$ 272
Wed 19/111:40 p.m.LAX - YYZ
Nonstop4h 42mPorter Airlines
Wed 3/1210:00 a.m.YYZ - LAX
Nonstop5h 39mPorter Airlines
Deal found 28/7C$ 273
Thu 11/910:00 a.m.EWR - YTZ
Nonstop1h 40mPorter Airlines
Thu 18/912:50 p.m.YTZ - EWR
Nonstop1h 30mPorter Airlines
Deal found 27/7C$ 276
Fri 5/91:15 p.m.EWR - YYZ
1 stop4h 58mPorter Airlines
Sat 13/94:40 p.m.YYZ - EWR
1 stop4h 20mPorter Airlines
Deal found 27/7C$ 276
Fri 5/94:15 p.m.EWR - YTZ
1 stop4h 30mMultiple Airlines
Mon 8/910:25 a.m.YTZ - EWR
1 stop4h 18mMultiple Airlines
Deal found 29/7C$ 281
Thu 4/99:00 a.m.JFK - YUL
Nonstop1h 32mAir Canada
Mon 8/98:00 p.m.YUL - JFK
Nonstop1h 45mAir Canada
Deal found 29/7C$ 283
Thu 21/87:30 a.m.EWR - YYZ
Nonstop1h 50mMultiple Airlines
Mon 25/87:00 a.m.YYZ - EWR
1 stop5h 30mMultiple Airlines
Deal found 28/7C$ 283

Cheapflights Fare Finder

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

Fly from

USA

Fly to

Ontario

Route

Depart

Return

Price

New YorkToronto

JFK - YYZ

JFKYYZ

New York John F Kennedy Intl

Thu 21/8

10:45 a.m.-12:30 p.m.

Nonstop1h 45m

Toronto Pearson Intl

Sun 24/8

7:55 a.m.-10:00 a.m.

Nonstop2h 05m

C$ 222

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sun 14/9

11:10 p.m.-6:59 a.m.

Nonstop4h 49m

Toronto Pearson Intl

Wed 17/9

10:40 a.m.-1:00 p.m.

Nonstop5h 20m

C$ 234

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 18/11

11:50 a.m.-12:38 a.m.

1 stop9h 48m

Toronto Pearson Intl

Sun 30/11

7:45 a.m.-6:32 p.m.

2 stops13h 47m

C$ 240

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 6/9

10:30 p.m.-10:39 a.m.

1 stop9h 09m

Toronto Pearson Intl

Sat 13/9

6:35 p.m.-8:53 p.m.

Nonstop5h 18m

C$ 246

New YorkToronto

LGA - YYZ

LGAYYZ

New York LaGuardia

Wed 3/9

6:15 a.m.-7:55 a.m.

Nonstop1h 40m

Toronto Pearson Intl

Wed 22/10

2:50 p.m.-4:30 p.m.

Nonstop1h 40m

C$ 257

New YorkToronto

JFK - YYZ

JFKYYZ

New York John F Kennedy Intl

Sat 13/9

10:30 a.m.-12:13 p.m.

Nonstop1h 43m

Toronto Pearson Intl

Sat 20/9

8:00 a.m.-9:47 a.m.

Nonstop1h 47m

C$ 272

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 19/11

1:40 p.m.-9:22 p.m.

Nonstop4h 42m

Toronto Pearson Intl

Tue 2/12

10:00 a.m.-12:39 p.m.

Nonstop5h 39m

C$ 273

NewarkToronto

EWR - YTZ

EWRYTZ

Newark

Thu 11/9

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

Nonstop1h 40m

Toronto Island

Thu 18/9

12:50 p.m.-2:20 p.m.

Nonstop1h 30m

C$ 276

NewarkToronto

EWR - YYZ

EWRYYZ

Newark

Fri 5/9

1:15 p.m.-6:13 p.m.

1 stop4h 58m

Toronto Pearson Intl

Sat 13/9

4:40 p.m.-9:00 p.m.

1 stop4h 20m

C$ 276

NewarkToronto

EWR - YTZ

EWRYTZ

Newark

Fri 5/9

4:15 p.m.-8:45 p.m.

1 stop4h 30m

Toronto Island

Mon 8/9

10:25 a.m.-2:43 p.m.

1 stop4h 18m

C$ 281

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 60 results
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Best time to book a flight from USA to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from USA to Region of Ontario (average of C$ 167). Flying from USA to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 US to ON?

Find hourly flight availability from USA to Ontario. 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 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to Region of Ontario as you normally would.

Weekly flight availability from USA to Region of Ontario

Explore weekly flight availability from USA to Ontario. 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 2025.

The most flights from US0 to CAON are scheduled on a Wednesday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 30 July 2025.
See what other customers who have flown with Alaska Airlines,Porter Airlines, andDelta from the United States to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Porter Airlines
8.0
Very good
318 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Air Transat
7.7
Good
424 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Related info for your journey

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

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

    One-way options have recently been found by users for as low as C$ 112 on Flair Airlines. Other airlines that offer cheap prices include Porter Airlines from C$ 114 and Delta from C$ 123 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from USA to Region of Ontario (average of C$ 167). Flying from USA to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 USA to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Vancouver Intl to Pearson Intl flights
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Pearson Intl to St. John's flights
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Top 8 airlines flying from USA to Ontario

Discover the top 8 airlines that operate flights from USA to Ontario. 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 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 138AverageC$ 566FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 146AverageC$ 416FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 147AverageC$ 337FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Flair AirlinesCheapestC$ 153AverageC$ 281FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
American AirlinesCheapestC$ 177AverageC$ 347FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 186AverageC$ 481FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 204AverageC$ 592FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 239AverageC$ 619FlexibilityNo cancel feeOn-time50%
Search Air Transat 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 USA to Ontario?

Deals for USA to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from USA.

Can Cheapflights find flights from USA to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from USA? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on USA to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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