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Cheap flights from Ontario to Boston from C$ 184

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOS
22 Jun — 29 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 23 May 2026.

Mon 15/68:20 a.m.
YUL
-
BOS
Nonstop1h 25m
Air Canada
Mon 22/610:40 a.m.
BOS
-
YUL
Nonstop1h 23m
Air Canada
Deal found 18/5C$ 264
Mon 22/67:20 p.m.
YUL
-
BOS
Nonstop1h 35m
Porter Airlines
Fri 26/64:45 p.m.
BOS
-
YUL
Nonstop1h 30m
Porter Airlines
Deal found 19/5C$ 265
Thu 11/68:20 a.m.
YUL
-
BOS
Nonstop1h 25m
Air Canada
Sun 14/65:10 a.m.
BOS
-
YUL
1 stop6h 41m
Air Canada
Deal found 19/5C$ 266
Thu 4/64:40 p.m.
YUL
-
BOS
Nonstop1h 27m
Air Canada
Sun 7/65:10 a.m.
BOS
-
YUL
1 stop6h 41m
Air Canada
Deal found 18/5C$ 268
Sat 20/68:00 a.m.
YUL
-
BOS
1 stop6h 41m
Porter Airlines
Tue 23/67:10 a.m.
BOS
-
YUL
1 stop5h 00m
Porter Airlines
Deal found 18/5C$ 270
Mon 8/67:20 p.m.
YUL
-
BOS
Nonstop1h 35m
Porter Airlines
Tue 9/67:10 a.m.
BOS
-
YUL
1 stop6h 30m
Porter Airlines
Deal found 18/5C$ 272
Fri 12/67:20 p.m.
YUL
-
BOS
Nonstop1h 35m
Porter Airlines
Mon 15/64:45 p.m.
BOS
-
YUL
Nonstop1h 30m
Porter Airlines
Deal found 22/5C$ 275
Sat 6/611:10 a.m.
YUL
-
BOS
1 stop6h 49m
Multiple Airlines
Thu 11/64:45 p.m.
BOS
-
YUL
Nonstop1h 30m
Multiple Airlines
Deal found 18/5C$ 276
Fri 12/67:20 p.m.
YUL
-
BOS
Nonstop1h 35m
Porter Airlines
Sun 14/64:45 p.m.
BOS
-
YUL
Nonstop1h 30m
Porter Airlines
Deal found 22/5C$ 277
Wed 17/68:50 a.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 21/67:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 20/5C$ 288
Fri 17/73:05 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Thu 23/77:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 20/5C$ 290
Fri 3/76:00 p.m.
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 5/77:10 a.m.
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 21/5C$ 291

Find flight deals from Ontario to Boston

Keep the following information in mind while searching for Ontario to Boston flight deals. Data was last updated 23 May 2026.

Round-trip from

C$ 264

One-way from

C$ 184

Popular in

April

Cheapest in

October

Average price

C$ 396

Good round-trip deal

C$ 297 or less

Good one-way deal

C$ 183 or less
Air Canada
  • Air Canada
  • 15/6-22/6
  • Nonstop
  • 2h 48m total
  • Ontario to Boston
Search Deals
Porter Airlines
  • Porter Airlines
  • 3/7
  • Nonstop
  • 1h 41m total
  • Ontario to Boston
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 80 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).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Ontario to Boston Logan Intl.
Search Deals

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 23 May 2026.
Use the filters below to find and compare flights from Ontario to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Wed 17/6

11:00 a.m.-5:35 p.m.

1 stop6h 35m

Boston Logan Intl

Wed 24/6

7:10 a.m.-1:40 p.m.

1 stop6h 30m

C$ 324

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Wed 22/7

7:20 p.m.-8:55 p.m.

Nonstop1h 35m

Boston Logan Intl

Mon 27/7

4:45 p.m.-6:15 p.m.

Nonstop1h 30m

C$ 334

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

7:20 p.m.-8:55 p.m.

Nonstop1h 35m

Boston Logan Intl

Sun 5/7

4:45 p.m.-6:15 p.m.

Nonstop1h 30m

C$ 338

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

3:25 p.m.-10:12 p.m.

1 stop6h 47m

Boston Logan Intl

Sat 13/6

4:05 p.m.-10:06 p.m.

1 stop6h 01m

C$ 353

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Tue 23/6

9:10 a.m.-2:41 p.m.

1 stop5h 31m

Boston Logan Intl

Wed 24/6

5:45 a.m.-11:30 a.m.

1 stop5h 45m

C$ 360

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 9/7

3:05 p.m.-4:46 p.m.

Nonstop1h 41m

Boston Logan Intl

Thu 16/7

4:45 p.m.-10:20 p.m.

1 stop5h 35m

C$ 370

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Tue 30/6

1:50 p.m.-7:05 p.m.

1 stop5h 15m

Boston Logan Intl

Sun 5/7

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

Nonstop1h 55m

C$ 373

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Mon 15/6

5:15 p.m.-1:14 a.m.

1 stop7h 59m

Boston Logan Intl

Tue 23/6

7:19 a.m.-3:46 p.m.

1 stop8h 27m

C$ 374

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 17/8

6:00 p.m.-7:41 p.m.

Nonstop1h 41m

Boston Logan Intl

Sat 22/8

5:30 p.m.-7:17 p.m.

Nonstop1h 47m

C$ 384

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Wed 8/7

6:00 a.m.-10:23 a.m.

1 stop4h 23m

Boston Logan Intl

Wed 15/7

3:00 p.m.-11:44 p.m.

1 stop8h 44m

C$ 385

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of C$ 113). Flying from Region of Ontario to Boston in November is currently the most expensive (average of C$ 1,315). 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 23 May 2026.

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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 61% on airfare.

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 23 May 2026.

The most flights from CAON to BOS are scheduled on a Thursday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Region of Ontario to Boston?

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

The price you pay for your flight from Region of Ontario to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 28 March 2026.

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

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$ 360, Porter Airlines can have you in Boston from Region of Ontario in 5h 31m. The distance between Region of Ontario and Boston is about 497 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 102. However, be on the lookout for offers from Air Transat and Air Canada, as they are both options that can get you from Region of Ontario to Boston for a low price.

  • 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: Air Canada (69%), Jazz (65%), United Airlines (64%).

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

    The cheapest flight price from Region of Ontario to Boston is C$ 188. On average you can expect to pay C$ 978. The most popular route, (Toronto Pearson Intl - Boston Logan Intl), can usually be booked for C$ 301.

  • 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, February is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of C$ 113). Flying from Region of Ontario to Boston in November is currently the most expensive (average of C$ 1,315). 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
Merrimack
Chelsea
Braintree
Milford
Seekonk
Hampton
Old Orchard Beach
Revere
Waltham
Kennebunk
Watertown
Ogunquit
Warwick
Lawrence
Pawtucket
Nashua

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Ontario to Boston

Discover the top 4 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 23 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 153AverageC$ 686FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 264AverageC$ 380FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 318AverageC$ 542FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 335AverageC$ 553FlexibilityNo cancel feeOn-time50%
Search Air Transat 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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