HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$83+ Cheap flights from Massachusetts to Ontario

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Massachusetts to Ontario 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.

Cheap flight deals from Massachusetts to Ontario

Keep the following information in mind while searching for Massachusetts to Ontario flight deals. Data was last updated July 30, 2025.

Round-trip from

$227
(Kiwi.com)

One-way from

$83
(Kiwi.com)

Popular in

November

Cheapest in

March

Average price

$301

Good round-trip deal

$257 or less

Good one-way deal

$112 or less
From Massachusetts to Ontario
Search Deals
One-way flight from Massachusetts to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Massachusetts to Ontario.
Search Deals
Price to beat on a one-way flight from Massachusetts to Ontario.
Search Deals

Find flight deals from Massachusetts to Ontario

Cheapest flights from Massachusetts to Ontario
Explore the most affordable flight options available from Massachusetts to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Tue 10/143:30 pmBOS - YTZ
1 stop3h 33mPorter Airlines
Tue 10/213:10 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 7/28$227
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amBOS - YYZ
1 stop6h 39mAir Canada
Mon 9/154:25 pmYYZ - BOS
Nonstop1h 45mAir Canada
Deal found 7/29$229
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:55 pmBOS - YYZ
Nonstop1h 55mMultiple Airlines
Wed 8/279:10 amYYZ - BOS
2 stops9h 18mMultiple Airlines
Deal found 7/28$234
This Flightnetwork deal was found by Cheapflights users on 7/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:50 amBOS - YTZ
1 stop5h 56mMultiple Airlines
Sun 8/3111:40 amYTZ - BOS
1 stop6h 18mMultiple Airlines
Deal found 7/28$238
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/64:55 pmBOS - YYZ
1 stop6h 16mDelta
Sat 9/206:03 amYYZ - BOS
1 stop4h 50mDelta
Deal found 7/29$268
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:30 pmBOS - YYZ
1 stop3h 33mAmerican Airlines
Thu 9/1810:55 amYYZ - BOS
1 stop7h 54mAmerican Airlines
Deal found 7/29$273
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:30 pmBOS - YYZ
1 stop12h 22mWestJet
Sun 10/126:30 amYYZ - BOS
1 stop11h 10mWestJet
Deal found 7/27$289
This Mytrip deal was found by Cheapflights users on 7/29. 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 9/1511:00 amALB - YYZ
2 stops27h 05mMultiple Airlines
Thu 9/186:30 amYYZ - ALB
2 stops27h 40mMultiple Airlines
Deal found 7/29$290
This Mytrip deal was found by Cheapflights users on 7/29. 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 9/157:09 pmBDL - YYZ
2 stops18h 56mMultiple Airlines
Thu 9/186:30 amYYZ - BDL
2 stops29h 24mMultiple Airlines
Deal found 7/29$298
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:40 pmBOS - YOW
1 stop3h 54mPorter Airlines
Mon 9/151:25 pmYOW - BOS
1 stop3h 26mPorter Airlines
Deal found 7/30$302
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:40 pmBOS - YUL
Nonstop1h 25mAir Canada
Sun 8/318:05 amYUL - BOS
Nonstop1h 25mAir Canada
Deal found 7/29$320
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Fri 9/53:30 pmBOS - YOW
Nonstop1h 28mMultiple Airlines
Sat 9/64:30 pmYOW - BOS
Nonstop1h 28mMultiple Airlines
Deal found 7/29$322

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts 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 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Massachusetts to Ontario that are best for you.

Fly from

Massachusetts

Fly to

Ontario

Route

Depart

Return

Price

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 10/14

3:30 pm-7:03 pm

1 stop3h 33m

Toronto Island

Tue 10/21

3:10 pm-4:51 pm

Nonstop1h 41m

$227

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/13

6:00 am-12:39 pm

1 stop6h 39m

Toronto Pearson Intl

Mon 9/15

4:25 pm-6:10 pm

Nonstop1h 45m

$229

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 8/21

6:55 pm-8:50 pm

Nonstop1h 55m

Toronto Pearson Intl

Wed 8/27

9:10 am-6:28 pm

2 stops9h 18m

$234

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 8/29

5:50 am-11:46 am

1 stop5h 56m

Toronto Island

Sun 8/31

11:40 am-5:58 pm

1 stop6h 18m

$238

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/6

4:55 pm-11:11 pm

1 stop6h 16m

Toronto Pearson Intl

Mon 9/15

6:15 am-3:19 pm

1 stop9h 04m

$268

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Mon 9/8

7:30 pm-11:03 pm

1 stop3h 33m

Toronto Pearson Intl

Thu 9/18

10:55 am-6:49 pm

1 stop7h 54m

$273

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 10/10

6:30 pm-6:52 am

1 stop12h 22m

Toronto Pearson Intl

Sun 10/12

6:30 am-5:40 pm

1 stop11h 10m

$289

AlbanyToronto

ALB - YYZ

ALBYYZ

Albany Intl

Mon 9/15

11:00 am-2:05 pm

2 stops27h 05m

Toronto Pearson Intl

Thu 9/18

6:30 am-10:10 am

2 stops27h 40m

$290

HartfordToronto

BDL - YYZ

BDLYYZ

Hartford Bradley Intl

Mon 9/15

7:09 pm-2:05 pm

2 stops18h 56m

Toronto Pearson Intl

Thu 9/18

6:30 am-11:54 am

2 stops29h 24m

$298

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 9/8

12:40 pm-4:34 pm

1 stop3h 54m

Ottawa

Mon 9/15

1:25 pm-4:51 pm

1 stop3h 26m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

Best time to book a flight from Massachusetts to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Massachusetts to Region of Ontario (average of $243). Flying from Massachusetts to Region of Ontario in August is currently the most expensive (average of $348). 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 MA to ON?

Find hourly flight availability from Massachusetts 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 July 30, 2025.

When flying from Massachusetts to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Massachusetts to Region of Ontario

Explore weekly flight availability from Massachusetts 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 July 30, 2025.

The most flights from USMA to CAON 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 Massachusetts to Region of Ontario?

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 July 30, 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, and Air Transat from Massachusetts to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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
Delta
8.0
Very good
7,980 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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
424 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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
8,896 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Crew

8.7

Food

7.6

Boarding

8.2

Comfort

8.0

Entertainment

7.0

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 Massachusetts to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    One-way options have recently been found by users for as low as $83 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from $106 and WestJet from $115 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Massachusetts to Region of Ontario (average of $243). Flying from Massachusetts to Region of Ontario in August is currently the most expensive (average of $348). 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

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 Massachusetts to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Pearson Intl flights
Newark to Toronto Island flights
John F Kennedy Intl to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
LaGuardia to Pearson Intl flights
Newark to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Boston to Pearson Intl flights
John F Kennedy Intl to Vancouver Intl flights
San Francisco to Vancouver Intl flights
Reagan-National to Pearson Intl flights
Newark to Vancouver Intl flights
Los Angeles to Vancouver Intl flights
Los Angeles to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Boston to Toronto Island flights
John F Kennedy Intl to Calgary flights
Denver to Vancouver Intl flights
Dallas/Fort Worth to Pearson Intl flights
San Francisco to Pearson Intl flights
San Francisco to Calgary flights
O'Hare Intl to Vancouver Intl flights
Newark to Calgary flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pearson Intl flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Seattle to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Dulles Intl to Vancouver Intl flights
Los Angeles to Calgary flights
LaGuardia to Vancouver Intl flights
O'Hare Intl to Calgary flights
John F Kennedy Intl to Toronto Island flights
San Francisco to Pierre Elliott Trudeau Intl flights
San Francisco to Abbotsford flights
Sky Harbor Intl to Vancouver Intl flights
Minneapolis to Vancouver Intl flights
Atlanta to Pearson Intl flights
Baltimore to Pearson Intl flights
Minneapolis to Calgary flights
Fort Lauderdale to Pearson Intl flights
Santa Ana to Vancouver Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Ontario to Vancouver Intl flights
Seattle to Calgary flights
Los Angeles to Abbotsford flights
San Diego to Vancouver Intl flights
Hobby to Vancouver Intl flights
Hobby to Pearson Intl flights

Top 5 airlines flying from Massachusetts to Ontario

Discover the top 5 airlines that operate flights from Massachusetts 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 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$126Average$417FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$151Average$552FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$165Average$346FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$242Average$385FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$254Average$370FlexibilityNo cancel feeOn-time50%

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.