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$129+ Cheap flights from Ontario to Boston (BOS)

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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOS
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheap flight deals from Ontario to Boston

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 April 22, 2026.

This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/219:00 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Tue 5/265:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 4/21$206
This Cheapflightsfares deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/203:55 pm
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Wed 5/2710:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 4/22$206
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 5/107:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 4/21$207
This Super.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:50 pm
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Thu 6/1110:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 4/21$207
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:55 am
YTZ
-
BOS
1 stop4h 05m
Porter Airlines
Fri 6/57:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 4/20$208
This FlightHub deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:25 am
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Sat 8/296:35 pm
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 4/19$208
This Trip.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:00 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 5/107:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 4/20$209
This FlightHub deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/253:55 pm
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Mon 7/610:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 4/20$209
This Trip.com deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:00 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 5/248:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 4/19$210
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Tue 7/73:25 pm
BOS
-
YTZ
1 stop3h 33m
Porter Airlines
Deal found 4/21$211
This Super.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:40 pm
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Wed 5/2010:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 4/20$211
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:30 am
YUL
-
BOS
1 stop4h 01m
Porter Airlines
Tue 6/97:10 am
BOS
-
YUL
1 stop5h 00m
Porter Airlines
Deal found 4/18$211

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 April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(Trip.com)

One-way from

$129
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$319

Good round-trip deal

$208 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for Toronto (YTO)-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Boston Logan Intl flights.
Search Deals
From Ontario to Boston Logan Intl
Search Deals
One-way flight from Ontario to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 2,558,603 searches. Data last updated April 22, 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

Fri 5/22

7:20 pm-8:55 pm

Nonstop1h 35m

Boston Logan Intl

Sun 5/31

4:45 pm-6:15 pm

Nonstop1h 30m

$228
Quickest round-trip

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Sat 5/23

2:30 pm-3:55 pm

Nonstop1h 25m

Boston Logan Intl

Wed 6/3

3:25 pm-4:53 pm

Nonstop1h 28m

$238

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Fri 7/3

7:30 am-1:54 pm

1 stop6h 24m

Boston Logan Intl

Sat 7/18

5:45 am-7:15 am

Nonstop1h 30m

$246

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Wed 5/20

3:05 pm-4:46 pm

Nonstop1h 41m

Boston Logan Intl

Sun 5/24

7:10 am-8:57 am

Nonstop1h 47m

$249

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Tue 6/23

1:00 pm-2:41 pm

Nonstop1h 41m

Boston Logan Intl

Tue 6/23

5:30 pm-7:17 pm

Nonstop1h 47m

$252

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Wed 6/3

10:35 am-2:41 pm

1 stop4h 06m

Boston Logan Intl

Sun 6/7

7:10 am-12:10 pm

1 stop5h 00m

$258

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Wed 5/20

7:20 pm-8:55 pm

Nonstop1h 35m

Boston Logan Intl

Sun 5/24

4:45 pm-6:15 pm

Nonstop1h 30m

$259

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Fri 5/29

6:37 pm-11:37 pm

1 stop5h 00m

Boston Logan Intl

Tue 6/2

12:00 pm-5:55 pm

1 stop5h 55m

$263

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Sat 5/2

3:00 pm-7:54 pm

1 stop4h 54m

Boston Logan Intl

Thu 5/7

7:30 am-3:46 pm

1 stop8h 16m

$263

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Sat 5/2

6:00 am-10:25 am

1 stop4h 25m

Boston Logan Intl

Fri 5/8

6:30 pm-11:41 pm

1 stop5h 11m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 $82). Flying from Region of Ontario to Boston in April is currently the most expensive (average of $655). 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 April 22, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 53% on flights from Region of Ontario to Boston by exploring options for tickets in the morning.

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 August 31, 2025.

Travelers seeking maximum savings on their Region of Ontario to Boston flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon 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 April 22, 2026.

The most flights from CAON to BOS are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 on average).

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

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?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Boston from Ontario.

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

    There are many flights that can get you from Region of Ontario to Boston in 4h 01m. Fly via Porter Airlines, Delta, or United Airlines to get the fastest option. Region of Ontario and Boston are separated by a distance of 253 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at $117. Air Canada flights start at $125 while deals on Air Transat start at $142 one-way.

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

    While some choose either Toronto Island - Boston Logan Intl or Montreal Pierre Elliott Trudeau Intl - Boston Logan Intl, Toronto Pearson Intl - Boston Logan Intl is the most popular route from Region of Ontario to Boston.

  • 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: Brussels Airlines (80%), Air Canada (64%), Jazz (59%).

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

    While on average a flight from Region of Ontario to Boston is generally $1,458, our data shows the cheapest flight currently is $130. When looking at the most popular route, (Toronto Pearson Intl - Boston Logan Intl), you can expect to pay $205 for that flight.

  • 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 $82). Flying from Region of Ontario to Boston in April is currently the most expensive (average of $655). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
Seabrook
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Waltham
Lowell
Braintree

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Ontario to Boston

Discover the top 3 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 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$180Average$299FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$195Average$323FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$213Average$473FlexibilityNo cancel feeOn-time69%

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