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Cheap flights from Ontario to Boston from C$ 142

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 17/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOS
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ontario to Boston

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Boston
Explore the most affordable flight options available from Ontario to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 November 2025.

Fri 5/122:05 p.m.YTZ - BOS
1 stop4h 06mPorter Airlines
Mon 8/127:00 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 3/11C$ 293
Wed 3/128:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Sat 6/127:00 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 2/11C$ 295
Sun 23/118:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Sat 29/117:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 2/11C$ 296
Thu 4/121:20 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Sun 7/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Deal found 2/11C$ 299
Wed 3/128:15 a.m.YYZ - BOS
Nonstop1h 42mAir Canada
Sat 6/126:15 a.m.BOS - YYZ
Nonstop2h 02mAir Canada
Deal found 2/11C$ 303
Thu 4/121:20 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Thu 11/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 3/11C$ 306
Wed 3/1211:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Mon 8/127:00 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 3/11C$ 309
Thu 18/128:55 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Thu 25/125:30 a.m.BOS - YYZ
1 stop6h 10mAir Canada
Deal found 3/11C$ 313
Thu 4/1211:00 a.m.YYZ - BOS
1 stop3h 52mAir Canada
Sun 7/126:40 p.m.BOS - YYZ
1 stop5h 39mAir Canada
Deal found 3/11C$ 316
Fri 5/128:55 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Sun 11/16:15 a.m.BOS - YYZ
Nonstop2h 02mAir Canada
Deal found 3/11C$ 323
Mon 22/128:55 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Tue 30/125:30 a.m.BOS - YYZ
1 stop6h 10mAir Canada
Deal found 3/11C$ 327
Sun 14/127:00 a.m.YOW - BOS
3 stops27h 03mMultiple Airlines
Thu 18/1212:29 p.m.BOS - YOW
1 stop11h 29mMultiple Airlines
Deal found 4/11C$ 347

Cheap flight deals from Ontario to Boston

Keep the following information in mind while searching for Ontario to Boston flight deals. Data was last updated 4 November 2025.

Round-trip from

C$ 293

One-way from

C$ 142

Popular in

December

Cheapest in

September

Average price

C$ 410

Good round-trip deal

C$ 329 or less

Good one-way deal

C$ 227 or less
Porter Airlines
  • Porter Airlines
  • 5/12-8/12
  • 1 total stop
  • 6h 01m total
  • Ontario to Boston
Search Deals
17/12
  • 17/12
  • 3 total stops
  • 27h 01m total
  • Ontario to Boston
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ontario to Boston Logan Intl.
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Price to beat on a one-way flight from Ontario to Boston Logan Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Boston 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 4 November 2025.
Use the filters below to find and compare flights from Ontario to Boston that are best for you.

Fly from

Ontario

Fly to

Boston

Route

Depart

Return

Price

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 4/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

Boston Logan Intl

Thu 11/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

C$ 306

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Tue 18/11

8:30 p.m.-10:05 p.m.

Nonstop1h 35m

Boston Logan Intl

Sun 14/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

C$ 328

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 17/11

8:30 p.m.-10:05 p.m.

Nonstop1h 35m

Boston Logan Intl

Sat 13/12

7:00 p.m.-8:55 p.m.

Nonstop1h 55m

C$ 331

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 8/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

Boston Logan Intl

Mon 12/1

11:50 a.m.-1:49 p.m.

Nonstop1h 59m

C$ 334

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 4/12

10:30 a.m.-2:52 p.m.

1 stop4h 22m

Boston Logan Intl

Thu 11/12

5:30 a.m.-11:55 a.m.

1 stop6h 25m

C$ 347

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Fri 5/12

10:30 a.m.-6:11 p.m.

1 stop7h 41m

Boston Logan Intl

Tue 9/12

7:00 p.m.-8:55 p.m.

Nonstop1h 55m

C$ 350

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 17/11

11:05 a.m.-12:40 p.m.

Nonstop1h 35m

Boston Logan Intl

Mon 17/11

3:40 p.m.-10:03 p.m.

1 stop6h 23m

C$ 355

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Wed 3/12

11:00 a.m.-2:52 p.m.

1 stop3h 52m

Boston Logan Intl

Mon 8/12

5:30 a.m.-11:40 a.m.

1 stop6h 10m

C$ 357

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 19/2

8:50 a.m.-2:52 p.m.

2 stops6h 02m

Boston Logan Intl

Sun 22/2

5:30 a.m.-11:30 a.m.

2 stops6h 00m

C$ 361

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Wed 26/11

3:30 p.m.-9:49 p.m.

1 stop6h 19m

Boston Logan Intl

Sat 29/11

6:15 a.m.-8:17 a.m.

Nonstop2h 02m

C$ 365

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

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Best time to book a flight from Ontario to Boston

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

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

Currently, December is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of C$ 174). Flying from Region of Ontario to Boston in February is currently the most expensive (average of C$ 320). 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 BOS?

Find hourly flight availability from Ontario to Boston. 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 2025.

One of the essential ways to save on airfare from Region of Ontario to Boston is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Boston. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to Boston flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Region of Ontario to Boston

Explore weekly flight availability from Ontario to Boston. 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 2025.

The most flights from CAON to BOS are scheduled on a Monday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Related info for your journey

Find useful and relevant information for your journey from Ontario to Boston. 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 into for flights to Boston from Ontario?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Ontario. Logan Intl is conveniently located just 4.2 km from Boston’s city centre.

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

    For as low as C$ 306, Porter Airlines can have you in Boston from Region of Ontario in 1h 35m. The distance between Region of Ontario and Boston is about 695 km. Both multi-stop and direct flights can be found to your destination and back.

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

    When deciding which route to take from Region of Ontario to Boston consider Toronto Pearson Intl - Boston Logan Intl, Toronto Island - Boston Logan Intl or Montreal Pierre Elliott Trudeau Intl - Boston Logan Intl as they are the most popular.

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

    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 Region of Ontario to Boston on time: United Airlines (59%), Air Canada (54%), Jazz (49%).

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

    The cheapest flight price from Region of Ontario to Boston is C$ 326. On average you can expect to pay C$ 1,475. The most popular route, (Toronto Pearson Intl - Boston Logan Intl), can usually be booked for C$ 333.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of C$ 174). Flying from Region of Ontario to Boston in February is currently the most expensive (average of C$ 320). 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

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Chelsea
Waltham
Warwick
Milford
Braintree
Plymouth
Hampton
Old Orchard Beach
Revere
Merrimack
Kennebunk
Watertown
Lawrence
Seekonk
Nashua

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Alternative routes for Ontario to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Boston

Discover the top 5 airlines that operate flights from Ontario to Boston. 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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 204AverageC$ 608FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 217AverageC$ 433FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 270AverageC$ 406FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 328AverageC$ 457FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 355AverageC$ 504FlexibilityNo 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 Ontario to Boston?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Boston. 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 Ontario to Boston?

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 Boston from Ontario.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Boston, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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