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Cheap flights from the United States to Ontario from C$ 108

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
4 Feb — 11 Feb1
1 adult

Cheap flight deals from USA to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from USA (US0) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 January 2025.

Round-trip from

C$ 262

One-way from

C$ 108

Popular in

May

Cheapest in

January

Average price

C$ 265

Good round-trip deal

C$ 127 or less

Good one-way deal

C$ 54 or less
Flair Airlines
  • Flair Airlines
  • 26/4-29/4
  • Nonstop
  • 3h 45m total
  • USA to Ontario
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25/2
  • 25/2
  • 1 total stop
  • 17h 44m total
  • USA to Ontario
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Highest demand for flights based on searches. 6% potential increase in price (C$ 33 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).
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Average for round-trip flights in January 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 January 2025.

Sat 26/410:30 a.m.JFK - YYZ
Nonstop1h 45mFlair Airlines
Tue 29/47:45 a.m.YYZ - JFK
Nonstop2h 00mFlair Airlines
Deal found 29/1C$ 262
Wed 12/311:15 a.m.EWR - YTZ
Nonstop1h 40mPorter Airlines
Wed 12/37:45 p.m.YTZ - EWR
Nonstop1h 30mPorter Airlines
Deal found 28/1C$ 265
Sat 8/210:03 a.m.EWR - YYZ
1 stop14h 02mMultiple Airlines
Mon 10/22:55 p.m.YYZ - EWR
1 stop18h 06mMultiple Airlines
Deal found 29/1C$ 267
Sat 15/36:55 a.m.EWR - YTZ
1 stop4h 55mMultiple Airlines
Sat 22/311:55 a.m.YTZ - EWR
Nonstop1h 30mMultiple Airlines
Deal found 28/1C$ 271
Tue 11/27:55 p.m.LGA - YUL
2 stops19h 00mMultiple Airlines
Tue 18/23:55 p.m.YUL - LGA
1 stop17h 09mMultiple Airlines
Deal found 29/1C$ 274
Tue 4/312:59 p.m.LGA - YYZ
1 stop10h 56mMultiple Airlines
Tue 11/32:55 p.m.YYZ - LGA
1 stop18h 05mMultiple Airlines
Deal found 29/1C$ 280
Thu 4/97:30 a.m.SFO - YYZ
2 stops10h 31mWestJet
Mon 22/98:00 a.m.YYZ - SFO
2 stops12h 14mWestJet
Deal found 29/1C$ 281
Tue 25/23:30 p.m.SFO - YYZ
1 stop12h 13mMultiple Airlines
Tue 1/41:50 p.m.YYZ - SFO
2 stops22h 58mMultiple Airlines
Deal found 28/1C$ 284
Tue 25/27:15 p.m.LAX - YYZ
1 stop8h 28mMultiple Airlines
Mon 3/31:50 p.m.YYZ - LAX
2 stops22h 50mMultiple Airlines
Deal found 29/1C$ 284
Tue 4/311:15 a.m.JFK - YYZ
1 stop12h 39mMultiple Airlines
Tue 11/37:00 a.m.YYZ - JFK
1 stop27h 15mMultiple Airlines
Deal found 29/1C$ 287
Fri 7/210:30 a.m.LAX - YYZ
1 stop10h 00mWestJet
Tue 11/212:00 p.m.YYZ - LAX
1 stop10h 00mWestJet
Deal found 30/1C$ 296
Thu 20/22:10 p.m.EWR - YYZ
1 stop4h 15mPorter Airlines
Sun 23/22:00 p.m.YYZ - EWR
1 stop5h 05mPorter Airlines
Deal found 29/1C$ 298

Find flights from USA to Ontario within your budget

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 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

New YorkToronto

JFK - YYZ

JFKYYZ

New York John F Kennedy Intl

Sat 26/4

10:30 a.m.-12:15 p.m.

Nonstop1h 45m

Toronto Pearson Intl

Tue 29/4

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

Nonstop2h 00m

C$ 262

NewarkToronto

EWR - YTZ

EWRYTZ

Newark

Wed 12/3

11:15 a.m.-12:55 p.m.

Nonstop1h 40m

Toronto Island

Wed 12/3

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

Nonstop1h 30m

C$ 265

NewarkToronto

EWR - YYZ

EWRYYZ

Newark

Tue 4/3

10:16 a.m.-11:55 p.m.

1 stop13h 39m

Toronto Pearson Intl

Tue 11/3

7:10 a.m.-11:30 a.m.

1 stop4h 20m

C$ 268

NewarkToronto

EWR - YTZ

EWRYTZ

Newark

Sat 15/3

6:55 a.m.-11:50 a.m.

1 stop4h 55m

Toronto Island

Sat 22/3

11:55 a.m.-1:25 p.m.

Nonstop1h 30m

C$ 271

New YorkMontreal

LGA - YUL

LGAYUL

New York LaGuardia

Tue 11/2

7:55 p.m.-2:55 p.m.

2 stops19h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 18/2

3:55 p.m.-9:04 a.m.

1 stop17h 09m

C$ 274

New YorkToronto

LGA - YYZ

LGAYYZ

New York LaGuardia

Tue 4/3

12:59 p.m.-11:55 p.m.

1 stop10h 56m

Toronto Pearson Intl

Tue 11/3

2:55 p.m.-9:00 a.m.

1 stop18h 05m

C$ 280

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Tue 25/2

3:30 p.m.-6:43 a.m.

1 stop12h 13m

Toronto Pearson Intl

Tue 1/4

1:50 p.m.-9:48 a.m.

2 stops22h 58m

C$ 284

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 25/2

7:15 p.m.-6:43 a.m.

1 stop8h 28m

Toronto Pearson Intl

Mon 3/3

1:50 p.m.-9:40 a.m.

2 stops22h 50m

C$ 284

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 19/3

7:00 a.m.-11:30 p.m.

2 stops13h 30m

Toronto Pearson Intl

Mon 24/3

1:50 p.m.-9:44 p.m.

1 stop10h 54m

C$ 294

NewarkToronto

EWR - YYZ

EWRYYZ

Newark

Thu 20/2

2:10 p.m.-6:25 p.m.

1 stop4h 15m

Toronto Pearson Intl

Sun 23/2

2:00 p.m.-7:05 p.m.

1 stop5h 05m

C$ 298

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/1

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.

Travel insights for flights from USA to Ontario

Get recent, data-driven insights about flights from USA to Ontario including ideal travel times, pricing trends, and more.

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 January 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 January 2025.

The most flights from US0 to CAON are scheduled on a Friday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 January 2025.
Read through reviews of airlines operating flights from USA to Ontario, such as Delta, Alaska Airlines and Porter Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,456 reviews
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines
8.0
Very good
9,687 reviews
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
278 reviews
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Copa Airlines
7.6
Good
1,619 reviews
Delta
8.0
Very good
8,456 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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$ 123 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 138 and Delta from C$ 146 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.
Pearson Intl to Vancouver Intl flights
Vancouver Intl to Pearson Intl flights
Pierre Elliott Trudeau Intl to Vancouver Intl flights
Pearson Intl to Abbotsford flights
Toronto Island to Vancouver Intl flights
Pearson Intl to Calgary flights
Abbotsford to Pearson Intl flights
Edmonton to Vancouver Intl flights
Region of Waterloo Intl to Vancouver Intl flights
Vancouver Intl to Toronto Island flights
Calgary to Vancouver Intl flights
Vancouver Intl to Edmonton flights
Vancouver Intl to Pierre Elliott Trudeau Intl flights
Pierre Elliott Trudeau Intl to Calgary flights
Calgary to Pearson Intl flights
Newark to Pearson Intl flights
Mexico City to Vancouver Intl flights
Pearson Intl to Edmonton flights
Vancouver Intl to Calgary flights
Newark to Pierre Elliott Trudeau Intl flights
Ottawa to Vancouver Intl flights
John F Kennedy Intl to Pearson Intl flights
John F Kennedy Intl to Vancouver Intl flights
Newark to Vancouver Intl flights
Newark to Toronto Island flights
Toronto Island to Calgary flights
Vancouver Intl to Region of Waterloo Intl flights
Edmonton to Pearson Intl flights
Los Angeles to Vancouver Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Calgary to Abbotsford flights
Halifax to Toronto Island flights
LaGuardia to Pearson Intl flights
Toronto Island to Halifax flights
Mexico City to Pearson Intl flights
San Francisco to Vancouver Intl flights
Edmonton to Abbotsford flights
Winnipeg to Pearson Intl flights
Region of Waterloo Intl to Calgary flights
Pearson Intl to Pierre Elliott Trudeau Intl flights
Halifax to Pierre Elliott Trudeau Intl flights
Pearson Intl to Victoria flights
O'Hare Intl to Vancouver Intl flights
Abbotsford to Calgary flights
Calgary to Pierre Elliott Trudeau Intl flights
Ottawa to Calgary flights
Calgary to Toronto Island flights
Boston to Pearson Intl flights
Halifax to Pearson Intl flights

Top 10 airlines flying from USA to Ontario

Discover the top 10 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 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 149AverageC$ 502FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Flair AirlinesCheapestC$ 165AverageC$ 285FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
Air CanadaCheapestC$ 171AverageC$ 708FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 185AverageC$ 491FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 241AverageC$ 756FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Lynx AirCheapestC$ 249AverageC$ 304FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
Air TransatCheapestC$ 250AverageC$ 581FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 257AverageC$ 608FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 265AverageC$ 685FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 385AverageC$ 659FlexibilityNo cancel feeOn-time75%
Search Alaska 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 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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