How long is the flight from Region of Ontario to USA?

Departing from Region of Ontario to USA will take you 5h 10m. There are 539 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$ 44. However, be on the lookout for offers from WestJet and United Airlines, as they are both options that can get you from Region of Ontario to USA for a low price.

In terms of precipitation, rainfall in USA ranges from 61.0 - 221.0 mm per month. June is typically the wettest month, when rainfall can reach 221.0 mm. November is typically the driest time to visit USA when rainfall is around 61.0 mm.

If weather is an important factor for your trip to USA, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

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.

C$ 158+ Cheap Flights from Ontario to the United States

Cheap flight deals from Ontario to USA

Enter your travel dates to find the best prices.

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Best

Direct

Last-minute

One-way

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 27 September 2026.

Thu 29/105:15 p.m. -

Nonstop3h 30m

Sun 1/1111:20 a.m. -

Nonstop3h 20m

Deal found 26/9C$ 199

Sun 1/117:35 a.m. -

Nonstop3h 20m

Fri 6/1112:00 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 211

Thu 29/107:35 a.m. -

Nonstop3h 20m

Fri 6/1112:00 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 218

Sat 3/106:30 a.m. -

Nonstop3h 20m

Thu 29/1012:00 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 222

Sun 25/107:35 a.m. -

Nonstop3h 20m

Thu 29/1012:00 p.m. -

Nonstop3h 20m

Deal found 24/9C$ 225

Sun 25/107:00 a.m. -

Nonstop3h 30m

Thu 29/1012:00 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 226

Sun 25/107:00 a.m. -

Nonstop3h 30m

Thu 29/109:35 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 232

Sun 25/107:00 a.m. -

Nonstop3h 30m

Fri 30/108:35 p.m. -

Nonstop3h 20m

Deal found 22/9C$ 233

Mon 26/1012:20 p.m. -

Nonstop2h 59m

Sun 1/114:20 p.m. -

Nonstop3h 00m

Deal found 26/9C$ 246

Sat 24/102:20 p.m. -

Nonstop2h 58m

Mon 26/101:15 p.m. -

Nonstop3h 00m

Deal found 25/9C$ 247

Mon 16/119:15 a.m. -

Nonstop3h 10m

Sun 13/121:15 p.m. -

Nonstop3h 00m

Deal found 23/9C$ 249

Mon 26/1012:20 p.m. -

Nonstop2h 59m

Fri 30/101:15 p.m. -

Nonstop3h 00m

Deal found 25/9C$ 250

Best flights from Ontario to USA
Discover carefully curated flight deals from Ontario to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Mon 9/116:10 a.m. -

1 stop11h 23m

Wed 11/115:15 p.m. -

1 stop6h 11m

Deal found 25/9C$ 293

Thu 12/119:44 a.m. -

1 stop6h 22m

Fri 11/1210:05 p.m. -

Nonstop2h 47m

Deal found 24/9C$ 320

Tue 13/106:15 a.m. -

1 stop9h 39m

Fri 16/106:00 a.m. -

1 stop5h 19m

Deal found 25/9C$ 322

Tue 3/117:00 a.m. -

1 stop5h 10m

Mon 9/1112:50 p.m. -

1 stop5h 38m

Deal found 22/9C$ 334

Tue 15/127:43 a.m. -

1 stop6h 30m

Sun 27/1210:05 p.m. -

Nonstop2h 47m

Deal found 26/9C$ 495

Mon 7/126:10 a.m. -

1 stop11h 23m

Mon 14/129:10 a.m. -

1 stop13h 27m

Deal found 23/9C$ 300

Sun 8/116:10 a.m. -

1 stop15h 29m

Thu 12/1110:05 p.m. -

Nonstop2h 47m

Deal found 23/9C$ 322

Wed 21/1011:38 a.m. -

1 stop8h 30m

Mon 26/103:05 p.m. -

1 stop8h 54m

Deal found 24/9C$ 324

Tue 15/122:57 p.m. -

1 stop7h 07m

Sun 27/127:00 a.m. -

1 stop11h 45m

Deal found 26/9C$ 303

Tue 27/107:00 a.m. -

2 stops9h 45m

Thu 29/1012:50 p.m. -

1 stop3h 43m

Deal found 24/9C$ 344

Sat 17/107:45 a.m. -

1 stop7h 51m

Mon 26/105:10 a.m. -

1 stop5h 13m

Deal found 22/9C$ 324

Wed 21/107:30 a.m. -

1 stop7h 26m

Mon 26/107:00 a.m. -

1 stop15h 37m

Deal found 26/9C$ 308

Tue 13/107:00 a.m. -

1 stop8h 15m

Wed 25/119:30 p.m. -

Nonstop3h 05m

Deal found 26/9C$ 339

Mon 26/109:00 a.m. -

2 stops7h 45m

Thu 29/1012:50 p.m. -

1 stop5h 38m

Deal found 24/9C$ 344

Fri 4/122:25 p.m. -

1 stop9h 14m

Sun 13/125:35 a.m. -

1 stop5h 35m

Deal found 22/9C$ 324

Thu 5/1112:10 p.m. -

Nonstop1h 25m

Fri 13/119:40 a.m. -

Nonstop1h 38m

Deal found 22/9C$ 345

Sun 1/116:10 a.m. -

1 stop14h 18m

Sun 31/19:03 p.m. -

1 stop12h 44m

Deal found 22/9C$ 337

Tue 26/12:10 p.m. -

1 stop8h 59m

Sun 7/27:00 a.m. -

1 stop9h 06m

Deal found 25/9C$ 345

Fri 4/127:00 a.m. -

2 stops9h 45m

Sun 6/1212:50 p.m. -

1 stop3h 43m

Deal found 22/9C$ 356

Fri 30/107:44 p.m. -

1 stop3h 50m

Sun 1/116:00 a.m. -

Nonstop1h 42m

Deal found 23/9C$ 397

Wed 21/1011:38 a.m. -

1 stop8h 30m

Sun 25/107:33 a.m. -

1 stop9h 45m

Deal found 22/9C$ 369

Wed 16/124:40 p.m. -

1 stop7h 04m

Thu 17/1210:30 a.m. -

Nonstop1h 31m

Deal found 22/9C$ 370

Fri 6/117:10 p.m. -

Nonstop1h 25m

Tue 10/1112:50 p.m. -

1 stop5h 38m

Deal found 21/9C$ 382

Wed 16/122:45 p.m. -

1 stop3h 59m

Thu 17/126:00 a.m. -

1 stop4h 46m

Deal found 22/9C$ 421

Fri 26/212:15 p.m. -

1 stop8h 42m

Sat 6/37:15 a.m. -

1 stop8h 49m

Deal found 24/9C$ 372

Fri 23/102:45 p.m. -

1 stop5h 40m

Wed 28/103:29 p.m. -

1 stop5h 46m

Deal found 26/9C$ 385

Wed 21/106:30 a.m. -

Nonstop5h 38m

Sun 25/104:40 p.m. -

Nonstop4h 49m

Deal found 22/9C$ 457

Thu 10/1210:35 a.m. -

1 stop6h 10m

Tue 5/112:50 p.m. -

1 stop3h 43m

Deal found 21/9C$ 416

Fri 23/101:34 p.m. -

1 stop9h 34m

Sun 25/107:33 a.m. -

1 stop9h 45m

Deal found 24/9C$ 382

Fri 23/105:15 p.m. -

1 stop5h 55m

Fri 30/103:29 p.m. -

1 stop5h 46m

Deal found 25/9C$ 406

Find flight deals from Ontario to USA

Round-trip from	C$ 199
One-way from	C$ 158
Popular in	July
Cheapest in	January
Average price	C$ 383
Good round-trip deal	C$ 264 or less
Good one-way deal	C$ 155 or less

WestJet
29/10-1/11
Nonstop
6h 50m total
Ontario to USA

Search Deals

Flair Airlines
8/11-31/12
Nonstop
3h 20m total
Ontario to USA

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (C$ 84 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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

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

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Sat 5/12

2:57 p.m.-11:38 p.m.

1 stop8h 41m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 180

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Wed 9/12

12:55 p.m.-11:38 p.m.

1 stop10h 43m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 180

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Tue 8/12

6:10 a.m.-3:45 p.m.

1 stop9h 35m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 180

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Tue 9/3

3:10 p.m.-6:09 p.m.

Nonstop2h 59m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 182

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Sat 31/10

6:10 a.m.-9:39 p.m.

1 stop15h 29m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 188

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Mon 16/11

9:44 a.m.-11:38 p.m.

1 stop13h 54m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 191

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Mon 9/11

6:10 a.m.-5:33 p.m.

1 stop11h 23m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 195

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Mon 2/11

8:35 a.m.-11:59 p.m.

1 stop15h 24m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 201

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Tue 9/3

12:25 p.m.-6:11 p.m.

1 stop5h 46m

Tampa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 202

TorontoFort Lauderdale

YYZ Toronto Pearson Intl - FLL Fort Lauderdale

YYZFLL

Toronto Pearson Intl

Fri 30/10

11:38 a.m.-9:41 p.m.

1 stop10h 03m

Fort Lauderdale

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 202

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YYZ-TPA

YYZ-LAS

YYZ-FLL

YTZ-EWR

YYZ-SFO

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

CAON-US0

YYZ-TPA

YYZ-LAS

YYZ-FLL

YTZ-EWR

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

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 417). Flying from Region of Ontario to USA in August is currently the most expensive (average of C$ 544). 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?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from Region of Ontario to USA by exploring options for tickets in the morning.

Weekly flight availability from Region of Ontario to USA

The most flights from CAON to US0 are scheduled on a Friday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

How far ahead should I book a flight from Region of Ontario to USA?

To ensure you get the cheapest price possible for a flight from Region of Ontario to USA, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Region of Ontario to USA?

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.

Related info for your journey

How long is the flight from Region of Ontario to USA?
Departing from Region of Ontario to USA will take you 5h 10m. There are 539 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$ 44. However, be on the lookout for offers from WestJet and United 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, January is the cheapest month in which you can book a flight from Region of Ontario to USA (average of C$ 417). Flying from Region of Ontario to USA in August is currently the most expensive (average of C$ 544). 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

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Alternative routes for Ontario to USA

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Top 10 airlines flying from Ontario to USA

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 121	AverageC$ 636	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Flair Airlines	CheapestC$ 174	AverageC$ 350	FlexibilityNo cancel fee	On-timeN/A	Search Flair Airlines flights
Delta	CheapestC$ 196	AverageC$ 569	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
JetBlue	CheapestC$ 209	AverageC$ 232	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
WestJet	CheapestC$ 211	AverageC$ 544	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Porter Airlines	CheapestC$ 219	AverageC$ 525	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 236	AverageC$ 602	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 251	AverageC$ 641	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 306	AverageC$ 550	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Qatar Airways	CheapestC$ 756	AverageC$ 807	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

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.

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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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ontario to the United States from C$ 158

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to USA

Cheapest flights from Ontario to USAExplore 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 27 September 2026.

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 27 September 2026.

Best flights from Ontario to USADiscover carefully curated flight deals from Ontario to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Discover carefully curated flight deals from Ontario to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Direct flights from Ontario to USAExplore direct flight options from Ontario to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 September 2026.

Explore direct flight options from Ontario to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 September 2026.

Last-minute flights from Ontario to USADiscover last-minute flight deals from Ontario to USA. Data last updated 27 September 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to USA. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Ontario to USASearch for one-way flight options from Ontario to USA. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Search for one-way flight options from Ontario to USA. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.

Find flight deals from Ontario to USA

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to the United States that are best for you.

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.

Cheapflights Insights

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

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 27 September 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from Region of Ontario to USA by exploring options for tickets in the morning.

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 27 September 2026.

The most flights from CAON to US0 are scheduled on a Friday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

How far ahead should I book a flight from Region of Ontario to USA?

To ensure you get the cheapest price possible for a flight from Region of Ontario to USA, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 26 September 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.

Related info for your journey

How long is the flight from Region of Ontario to USA?

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

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

How can I find direct flights from Ontario to USA?

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

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

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.

Complete your trip

Complete your trip to USA by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Ontario to USA by cabin class

Find flights from Ontario to USA, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and USA flights

Browse other Ontario and USA flight options. Last updated on 27 September 2026.

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Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from USA

Find the right flight back to Ontario after your stay in USA

Ontario to USA flights

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Top 10 airlines flying from Ontario to USA

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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 27 September 2026.

Best flights from Ontario to USA
Discover carefully curated flight deals from Ontario to USA that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 27 September 2026.

Direct flights from Ontario to USA
Explore direct flight options from Ontario to USA based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 September 2026.

Last-minute flights from Ontario to USA
Discover last-minute flight deals from Ontario to USA. Data last updated 27 September 2026 and is based on user searches.

One-way flights from Ontario to USA
Search for one-way flight options from Ontario to USA. Find affordable one-way fares based on user searches. Data last updated 27 September 2026.