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

Departing from Region of Ontario to USA will take you 5h 06m. 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$ 43. 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$ 165+ Cheap Flights from Ontario to the United States

Cheap flight deals from Ontario to USA

Enter your travel dates to find the best prices.

Cheapest

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 4 November 2026.

Sun 22/117:35 a.m. -

Nonstop3h 20m

Thu 26/1112:00 p.m. -

Nonstop3h 20m

Deal found 30/10C$ 196

Mon 7/127:35 a.m. -

Nonstop3h 20m

Wed 16/1212:00 p.m. -

Nonstop3h 20m

Deal found 3/11C$ 201

Mon 23/117:35 a.m. -

Nonstop3h 20m

Wed 16/128:35 p.m. -

Nonstop3h 20m

Deal found 2/11C$ 208

Sun 22/117:35 a.m. -

Nonstop3h 20m

Thu 3/1212:00 p.m. -

Nonstop3h 20m

Deal found 3/11C$ 211

Mon 7/127:35 a.m. -

Nonstop3h 20m

Thu 10/1212:00 p.m. -

Nonstop3h 20m

Deal found 4/11C$ 215

Mon 7/127:35 a.m. -

Nonstop3h 20m

Fri 18/1212:00 p.m. -

Nonstop3h 20m

Deal found 3/11C$ 220

Sun 15/117:35 a.m. -

Nonstop3h 20m

Thu 19/1112:00 p.m. -

Nonstop3h 20m

Deal found 30/10C$ 221

Fri 11/129:15 a.m. -

Nonstop3h 10m

Sun 13/121:15 p.m. -

Nonstop3h 00m

Deal found 2/11C$ 256

Mon 7/122:25 p.m. -

Nonstop3h 01m

Fri 11/128:50 p.m. -

Nonstop2h 57m

Deal found 2/11C$ 259

Sun 13/124:50 p.m. -

Nonstop3h 01m

Thu 17/128:50 p.m. -

Nonstop2h 57m

Deal found 4/11C$ 264

Thu 10/1212:20 p.m. -

Nonstop3h 01m

Sun 13/128:50 p.m. -

Nonstop2h 57m

Deal found 3/11C$ 267

Mon 7/129:30 a.m. -

Nonstop3h 04m

Mon 14/1210:05 p.m. -

Nonstop2h 47m

Deal found 3/11C$ 270

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 4 November 2026.

Mon 7/125:25 p.m. -

1 stop7h 00m

Wed 9/127:05 a.m. -

1 stop9h 14m

Deal found 31/10C$ 327

Tue 24/117:00 a.m. -

1 stop5h 06m

Wed 2/122:15 p.m. -

Nonstop1h 39m

Deal found 3/11C$ 336

Fri 1/16:45 a.m. -

1 stop5h 59m

Fri 8/19:44 a.m. -

1 stop7h 03m

Deal found 31/10C$ 358

Mon 7/126:45 a.m. -

1 stop13h 32m

Mon 14/1210:05 p.m. -

Nonstop2h 47m

Deal found 1/11C$ 365

Fri 4/125:15 p.m. -

2 stops18h 45m

Mon 7/126:24 p.m. -

2 stops18h 41m

Deal found 3/11C$ 512

Mon 7/125:25 p.m. -

1 stop7h 00m

Mon 14/126:20 a.m. -

1 stop4h 50m

Deal found 2/11C$ 327

Fri 11/127:00 a.m. -

2 stops9h 55m

Sun 13/125:35 p.m. -

1 stop4h 24m

Deal found 31/10C$ 364

Fri 22/16:45 a.m. -

1 stop8h 11m

Fri 29/19:00 a.m. -

2 stops9h 45m

Deal found 3/11C$ 365

Thu 3/127:35 a.m. -

1 stop8h 40m

Mon 7/122:20 p.m. -

1 stop9h 38m

Deal found 3/11C$ 344

Tue 9/311:00 a.m. -

1 stop12h 59m

Tue 16/310:05 p.m. -

Nonstop2h 47m

Deal found 3/11C$ 380

Wed 9/129:00 a.m. -

2 stops7h 55m

Sun 13/1212:50 p.m. -

1 stop5h 39m

Deal found 1/11C$ 364

Thu 3/126:10 a.m. -

1 stop11h 23m

Mon 7/127:00 a.m. -

1 stop7h 17m

Deal found 3/11C$ 365

Mon 19/41:30 p.m. -

1 stop8h 42m

Fri 23/43:20 p.m. -

1 stop8h 41m

Deal found 31/10C$ 345

Fri 4/127:44 p.m. -

1 stop4h 00m

Mon 7/126:00 a.m. -

1 stop6h 46m

Deal found 30/10C$ 394

Mon 30/116:15 a.m. -

1 stop6h 15m

Fri 4/125:35 a.m. -

1 stop5h 35m

Deal found 3/11C$ 351

Wed 25/117:35 a.m. -

Nonstop1h 25m

Wed 25/1112:50 p.m. -

1 stop5h 38m

Deal found 3/11C$ 389

Wed 2/123:35 p.m. -

1 stop6h 24m

Fri 4/126:20 p.m. -

1 stop5h 39m

Deal found 31/10C$ 399

Thu 25/210:53 a.m. -

1 stop8h 23m

Sun 28/26:00 a.m. -

Nonstop1h 40m

Deal found 1/11C$ 401

Sun 31/16:14 a.m. -

1 stop7h 01m

Sat 13/211:20 a.m. -

1 stop4h 53m

Deal found 3/11C$ 351

Mon 14/127:00 a.m. -

2 stops9h 55m

Mon 21/1212:50 p.m. -

1 stop5h 39m

Deal found 30/10C$ 390

Wed 2/125:15 p.m. -

1 stop9h 44m

Wed 9/127:45 p.m. -

2 stops17h 20m

Deal found 30/10C$ 526

Thu 19/1110:53 a.m. -

1 stop5h 22m

Sat 21/113:29 p.m. -

1 stop5h 46m

Deal found 30/10C$ 406

Mon 1/27:00 a.m. -

1 stop5h 12m

Wed 3/212:50 p.m. -

1 stop5h 39m

Deal found 31/10C$ 392

Fri 19/26:15 a.m. -

1 stop10h 15m

Sat 6/37:00 a.m. -

1 stop9h 17m

Deal found 3/11C$ 359

Fri 11/123:35 p.m. -

1 stop5h 54m

Mon 14/127:30 p.m. -

1 stop4h 22m

Deal found 31/10C$ 406

Sun 22/119:44 a.m. -

1 stop10h 05m

Tue 24/116:25 p.m. -

Nonstop3h 08m

Deal found 1/11C$ 452

Mon 16/115:15 p.m. -

2 stops19h 40m

Sat 21/119:24 p.m. -

1 stop15h 41m

Deal found 1/11C$ 565

Mon 8/27:00 a.m. -

1 stop5h 12m

Thu 11/22:15 p.m. -

Nonstop1h 39m

Deal found 1/11C$ 392

Thu 25/212:07 p.m. -

1 stop7h 39m

Sun 28/27:00 a.m. -

1 stop9h 17m

Deal found 1/11C$ 361

Tue 2/27:00 a.m. -

1 stop5h 12m

Wed 3/212:50 p.m. -

1 stop5h 39m

Deal found 31/10C$ 392

Find flight deals from Ontario to USA

Round-trip from	C$ 194
One-way from	C$ 165
Popular in	December
Cheapest in	January
Average price	C$ 380
Good round-trip deal	C$ 230 or less
Good one-way deal	C$ 126 or less

Flair Airlines
5/1-28/1
Nonstop
6h 45m total
Ontario to USA

Search Deals

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

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Sat 5/12

2:25 p.m.-5:26 p.m.

Nonstop3h 01m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 206

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Mon 14/12

7:35 a.m.-2:15 p.m.

1 stop6h 40m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 206

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Fri 11/12

6:15 a.m.-4:15 p.m.

1 stop10h 00m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 210

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Fri 2/4

12:25 p.m.-10:12 p.m.

1 stop9h 47m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 211

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Thu 1/4

6:00 a.m.-2:55 p.m.

1 stop8h 55m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 211

TorontoNewark

YTZ Toronto Island - EWR Newark

YTZEWR

Toronto Island

Mon 14/12

9:00 a.m.-4:55 p.m.

2 stops7h 55m

Newark

Wed 31/12

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

Nonstop0h 00m

C$ 213

TorontoNewark

YTZ Toronto Island - EWR Newark

YTZEWR

Toronto Island

Tue 15/12

7:00 a.m.-4:55 p.m.

2 stops9h 55m

Newark

Wed 31/12

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

Nonstop0h 00m

C$ 213

TorontoNewark

YTZ Toronto Island - EWR Newark

YTZEWR

Toronto Island

Fri 4/12

9:00 a.m.-4:55 p.m.

2 stops7h 55m

Newark

Wed 31/12

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

Nonstop0h 00m

C$ 213

TorontoTampa

YYZ Toronto Pearson Intl - TPA Tampa

YYZTPA

Toronto Pearson Intl

Fri 20/11

6:15 a.m.-4:15 p.m.

1 stop10h 00m

Tampa

Wed 31/12

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

Nonstop0h 00m

C$ 214

TorontoFort Lauderdale

YYZ Toronto Pearson Intl - FLL Fort Lauderdale

YYZFLL

Toronto Pearson Intl

Sun 13/12

2:25 p.m.-11:39 p.m.

1 stop9h 14m

Fort Lauderdale

Wed 31/12

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

Nonstop0h 00m

C$ 214

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

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-FLL

YYZ-TPA

YTZ-EWR

YYZ-LAX

YYZ-LAS

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-FLL

YYZ-TPA

YTZ-EWR

YYZ-LAX

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$ 427). Flying from Region of Ontario to USA in December is currently the most expensive (average of C$ 554). 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 29% 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 Tuesday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (14 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 81 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. Tuesday afternoons 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 06m. 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$ 43. 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$ 427). Flying from Region of Ontario to USA in December is currently the most expensive (average of C$ 554). 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$ 120	AverageC$ 642	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Flair Airlines	CheapestC$ 181	AverageC$ 360	FlexibilityNo cancel fee	On-timeN/A	Search Flair Airlines flights
Delta	CheapestC$ 193	AverageC$ 548	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
WestJet	CheapestC$ 222	AverageC$ 563	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Porter Airlines	CheapestC$ 226	AverageC$ 502	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 233	AverageC$ 585	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 248	AverageC$ 667	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 284	AverageC$ 522	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Qatar Airways	CheapestC$ 748	AverageC$ 798	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights
Qantas Airways	CheapestC$ 750	AverageC$ 815	FlexibilityNo cancel fee	On-time74%	Search Qantas 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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Cheap flights from Ontario to the United States from C$ 165

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 20/11. 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 4 November 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 4 November 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 4 November 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 4 November 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 4 November 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 4 November 2026.

Last-minute flights from Ontario to USADiscover last-minute flight deals from Ontario to USA. Data last updated 4 November 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to USA. Data last updated 4 November 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 4 November 2026.

Search for one-way flight options from Ontario to USA. Find affordable one-way fares based on user searches. Data last updated 4 November 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 4 November 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.

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 4 November 2026.

The most flights from CAON to US0 are scheduled on a Tuesday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (14 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 81 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 31 October 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. Tuesday afternoons 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 4 November 2026.

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Find a return flight route from USA

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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 4 November 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 4 November 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 4 November 2026.

Last-minute flights from Ontario to USA
Discover last-minute flight deals from Ontario to USA. Data last updated 4 November 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 4 November 2026.