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Cheap flights from Boston to Ontario from C$ 137

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Boston to Ontario

Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated 19 August 2025.

Round-trip from

C$ 311

One-way from

C$ 137

Popular in

November

Cheapest in

March

Average price

C$ 428

Good round-trip deal

C$ 348 or less

Good one-way deal

C$ 127 or less
Air Canada
  • Air Canada
  • 13/9-15/9
  • Nonstop
  • 3h 36m total
  • Boston to Ontario
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Porter Airlines
  • Porter Airlines
  • 3/10
  • Nonstop
  • 1h 28m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Ontario.
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Price to beat on a one-way flight from Boston Logan Intl to Ontario.
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Find flight deals from Boston to Ontario

Cheapest flights from Boston to Ontario
Explore the most affordable flight options available from Boston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Sat 13/96:55 p.m.BOS - YYZ
Nonstop1h 52mAir Canada
Mon 15/98:55 p.m.YYZ - BOS
Nonstop1h 44mAir Canada
Deal found 18/8C$ 311
Wed 17/912:15 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Thu 18/93:10 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 18/8C$ 311
Thu 11/96:00 a.m.BOS - YYZ
1 stop4h 39mAir Canada
Sun 14/98:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 19/8C$ 312
Thu 25/93:30 p.m.BOS - YTZ
1 stop3h 33mPorter Airlines
Sun 28/99:50 a.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 18/8C$ 312
Fri 3/106:00 a.m.BOS - YYZ
1 stop6h 39mAir Canada
Fri 10/109:45 a.m.YYZ - BOS
Nonstop1h 44mAir Canada
Deal found 19/8C$ 313
Wed 8/105:35 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 12/109:50 a.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 17/8C$ 313
Fri 26/93:30 p.m.BOS - YTZ
1 stop3h 33mPorter Airlines
Sun 28/98:20 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 17/8C$ 315
Fri 26/96:55 p.m.BOS - YYZ
Nonstop1h 52mAir Canada
Wed 1/102:15 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 18/8C$ 316
Wed 24/95:35 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 28/99:50 a.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 17/8C$ 317
Thu 18/98:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sat 20/91:25 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 18/8C$ 319
Tue 30/96:55 p.m.BOS - YYZ
Nonstop1h 52mAir Canada
Thu 9/108:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 18/8C$ 320
Fri 26/95:35 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Tue 30/93:10 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 18/8C$ 320

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 19 August 2025.
Use the filters below to find and compare flights from Boston to Ontario that are best for you.

Fly from

Boston

Fly to

Ontario

Route

Depart

Return

Price

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 17/9

12:15 p.m.-2:04 p.m.

Nonstop1h 49m

Toronto Island

Thu 18/9

3:10 p.m.-4:51 p.m.

Nonstop1h 41m

C$ 311

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 2/10

8:45 a.m.-10:34 a.m.

Nonstop1h 49m

Toronto Island

Sun 5/10

1:25 p.m.-3:06 p.m.

Nonstop1h 41m

C$ 311

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 11/9

10:40 a.m.-12:35 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 14/9

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 312

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 8/10

5:35 p.m.-7:24 p.m.

Nonstop1h 49m

Toronto Island

Sun 12/10

9:50 a.m.-11:31 a.m.

Nonstop1h 41m

C$ 313

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 9/10

8:45 a.m.-10:34 a.m.

Nonstop1h 49m

Toronto Island

Sun 12/10

8:20 p.m.-10:01 p.m.

Nonstop1h 41m

C$ 313

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 13/9

6:00 a.m.-11:45 a.m.

1 stop5h 45m

Toronto Island

Mon 15/9

3:10 p.m.-4:51 p.m.

Nonstop1h 41m

C$ 315

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 24/9

3:30 p.m.-7:03 p.m.

1 stop3h 33m

Toronto Island

Fri 26/9

8:20 p.m.-10:01 p.m.

Nonstop1h 41m

C$ 315

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 12/9

3:30 p.m.-7:03 p.m.

1 stop3h 33m

Toronto Island

Thu 18/9

3:10 p.m.-4:51 p.m.

Nonstop1h 41m

C$ 315

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 26/9

3:30 p.m.-7:03 p.m.

1 stop3h 33m

Toronto Island

Sun 28/9

9:50 a.m.-11:31 a.m.

Nonstop1h 41m

C$ 315

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 13/9

6:00 a.m.-10:39 a.m.

1 stop4h 39m

Toronto Pearson Intl

Mon 15/9

8:55 p.m.-10:39 p.m.

Nonstop1h 44m

C$ 322

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from Boston 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 Boston to Ontario

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

Currently, January is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 168). Flying from Boston 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 BOS to ON?

Find hourly flight availability from Boston 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 19 August 2025.

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

Weekly flight availability from Boston to Region of Ontario

Explore weekly flight availability from Boston 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 19 August 2025.

The most flights from BOS to CAON are scheduled on a Monday (15 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 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 19 August 2025.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Boston to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
334 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.7

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
334 reviews
Porter Airlines
8.0
Very good
334 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.7

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
429 reviews
Porter Airlines
8.0
Very good
334 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.7

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,922 reviews
Porter Airlines
8.0
Very good
334 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.7

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,997 reviews
Porter Airlines
8.0
Very good
334 reviews
Check prices

Entertainment

7.0

Food

7.6

Overall

8.0

Crew

8.7

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Related info for your journey

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

  • What airport do you fly from for flights from Boston to Ontario?

    For a flight from Boston to Ontario, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 4.2 km from the centre of the city.

  • How long is the flight from Boston to Region of Ontario?

    For as low as C$ 312, Air Canada can have you in Region of Ontario from Boston in 1h 55m. Boston and Region of Ontario are separated by a distance of 715 km. 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 Boston to Region of Ontario one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 137. Air Canada flights start at C$ 145 while deals on WestJet start at C$ 162 one-way.

  • What are the most popular routes from Boston to Region of Ontario?

    The most popular route from Boston to Region of Ontario is Boston Logan Intl - Toronto Pearson Intl. You may also consider Boston Logan Intl - Toronto Island or Boston Logan Intl - Montreal Pierre Elliott Trudeau Intl.

  • What are the most reliable airlines from Boston to Region of Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Region of Ontario on time: ITA Airways (81%), Brussels Airlines (74%), United Airlines (64%).

  • What are the cheapest flights from Boston to Region of Ontario?

    While on average a flight from Boston to Region of Ontario is generally C$ 425, our data shows the cheapest flight currently is C$ 144. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 342 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 168). Flying from Boston 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

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Alternative routes for Boston to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Pearson Intl flights
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Hartford to Winnipeg flights
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Boston to Saskatoon flights
Provincetown to Pierre Elliott Trudeau Intl flights
Hartford to St. John's flights

Top 3 airlines flying from Boston to Ontario

Discover the top 3 airlines that operate flights from Boston 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 270AverageC$ 496FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 294AverageC$ 472FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 343AverageC$ 531FlexibilityNo cancel feeOn-time69%
Search United 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 Boston to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Boston to Ontario with no change fees.

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

Of course! You can now track prices for flights from Boston to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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