HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$123+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:00 pmYYZ - BOS
1 stop6h 12mAir Canada
Sun 11/236:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Deal found 10/29$202
This Trip.com deal was found by Cheapflights users on 10/30. 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 11/278:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Thu 12/46:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Deal found 10/30$206
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Thu 12/46:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Deal found 10/28$207
This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2011:05 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Fri 11/217:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 10/29$215
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:00 amYYZ - BOS
1 stop5h 52mAir Canada
Fri 11/286:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Deal found 10/30$215
This Trip.com deal was found by Cheapflights users on 10/29. 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 11/201:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Sun 11/237:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 10/29$217
This Air Canada deal was found by Cheapflights users on 10/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:00 pmYYZ - BOS
1 stop6h 12mAir Canada
Sun 1/410:45 amBOS - YYZ
Nonstop2h 03mAir Canada
Deal found 10/29$217
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/82:05 pmYTZ - BOS
1 stop4h 06mPorter Airlines
Thu 12/113:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Deal found 10/29$222
This Air Canada deal was found by Cheapflights users on 10/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:30 amYYZ - BOS
Nonstop1h 42mAir Canada
Thu 11/206:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Deal found 10/29$225
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/221:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Sun 11/237:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Deal found 10/29$228
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Fri 11/288:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Mon 12/13:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Deal found 10/28$229
This FlightHub deal was found by Cheapflights users on 10/28. 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.
Tue 11/254:35 pmYOW - BOS
1 stop5h 30mPorter Airlines
Fri 11/287:00 amBOS - YOW
1 stop4h 29mPorter Airlines
Deal found 10/28$230

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 October 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$202
(Mytrip)

One-way from

$123
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$280

Good round-trip deal

$228 or less

Good one-way deal

$162 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. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 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

Sun 1/11

9:30 am-11:05 am

Nonstop1h 35m

Boston Logan Intl

Sun 1/18

6:55 pm-8:54 pm

Nonstop1h 59m

$215

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 11/24

2:05 pm-6:11 pm

1 stop4h 06m

Boston Logan Intl

Thu 12/4

7:00 am-8:55 am

Nonstop1h 55m

$220

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 12/8

2:05 pm-6:11 pm

1 stop4h 06m

Boston Logan Intl

Thu 12/11

7:00 am-8:55 am

Nonstop1h 55m

$220

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 2/5

2:05 pm-6:10 pm

1 stop4h 05m

Boston Logan Intl

Mon 2/9

3:30 pm-7:08 pm

1 stop3h 38m

$221

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Thu 2/19

2:05 pm-6:10 pm

1 stop4h 05m

Boston Logan Intl

Sun 2/22

6:55 pm-8:54 pm

Nonstop1h 59m

$231

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Wed 1/21

6:55 pm-8:30 pm

Nonstop1h 35m

Boston Logan Intl

Sun 1/25

6:55 pm-8:54 pm

Nonstop1h 59m

$232

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Mon 11/24

2:05 pm-6:11 pm

1 stop4h 06m

Boston Logan Intl

Mon 12/1

3:40 pm-10:03 pm

1 stop6h 23m

$232

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Fri 12/5

4:45 pm-6:11 pm

Nonstop1h 26m

Boston Logan Intl

Mon 12/8

3:40 pm-5:09 pm

Nonstop1h 29m

$234

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Fri 12/5

8:30 pm-10:05 pm

Nonstop1h 35m

Boston Logan Intl

Tue 12/9

3:40 pm-10:03 pm

1 stop6h 23m

$235

OttawaBoston

YOW - BOS

YOWBOS

Ottawa

Fri 12/12

8:40 am-2:55 pm

1 stop6h 15m

Boston Logan Intl

Mon 12/15

7:00 am-11:29 am

1 stop4h 29m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 results
1
2
3
...
6

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 $124). Flying from Region of Ontario to Boston in February is currently the most expensive (average of $228). 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 October 30, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 43% on flights from Region of Ontario to Boston by exploring options for tickets in the evening.

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 December 16, 2024.

Travelers seeking maximum savings on their Region of Ontario to Boston flight should consider departing on Friday 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.

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 1h 26m. Fly via Porter Airlines, Air Transat, or Air Canada to get the fastest option. Region of Ontario and Boston are separated by a distance of 309 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 $128. Air Canada flights start at $137 while deals on Air Transat start at $139 one-way.

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

    While some choose either Montreal Pierre Elliott Trudeau Intl - Boston Logan Intl or Toronto Island - 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: United Airlines (57%), Air Canada (52%), ITA Airways (50%).

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

    While on average a flight from Region of Ontario to Boston is generally $1,442, our data shows the cheapest flight currently is $119. When looking at the most popular route, (Toronto Pearson Intl - Boston Logan Intl), you can expect to pay $229 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, December is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of $124). Flying from Region of Ontario to Boston in February is currently the most expensive (average of $228). 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
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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.

Alternative routes for Ontario to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Boston flights
Pierre Elliott Trudeau Intl to Boston flights
Toronto Island to Boston flights
Vancouver Intl to Boston flights
Halifax to Boston flights
Ottawa to Boston flights
Hamilton to Boston flights
Pearson Intl to Hartford flights
Calgary to Boston flights
Edmonton to Boston flights
Québec City to Boston flights
Moncton to Boston flights
Winnipeg to Boston flights
Victoria to Boston flights
Pearson Intl to Albany flights
Pierre Elliott Trudeau Intl to Hartford flights
Vancouver Intl to Hartford flights
St. John's to Boston flights
Edmonton to Hartford flights
Vancouver Intl to Albany flights
St John to Boston flights
London to Boston flights
Ottawa to Hartford flights
Thunder Bay to Boston flights
Saskatoon to Boston flights
Timmins to Boston flights
Toronto Island to Hartford flights
Halifax to Hartford flights
Halifax to Albany flights
Pierre Elliott Trudeau Intl to Provincetown flights
Regina to Boston flights
Kamloops to Boston flights
Québec City to Hartford flights
Winnipeg to Albany flights
Pearson Intl to Nantucket flights
Pierre Elliott Trudeau Intl to Nantucket flights

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$179Average$318FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$180Average$311FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$213Average$391FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.