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Cheap flights from Massachusetts to Ontario from C$ 144

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
6 Aug — 13 Aug1
1 adult

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 1 August 2025.

Round-trip from

C$ 317

One-way from

C$ 144

Popular in

November

Cheapest in

March

Average price

C$ 415

Good round-trip deal

C$ 346 or less

Good one-way deal

C$ 155 or less
Air Canada
  • Air Canada
  • 4/9-16/9
  • 1 total stop
  • 6h 21m total
  • Massachusetts to Ontario
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15/9
  • 15/9
  • 2 total stops
  • 27h 05m total
  • Massachusetts to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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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.
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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 1 August 2025.

Thu 4/96:00 a.m.BOS - YYZ
Nonstop1h 56mAir Canada
Tue 16/95:00 p.m.YYZ - BOS
1 stop4h 25mAir Canada
Deal found 31/7C$ 317
Thu 21/83:30 p.m.BOS - YTZ
1 stop4h 12mPorter Airlines
Sat 23/85:55 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 31/7C$ 317
Thu 21/85:50 a.m.BOS - YYZ
1 stop5h 50mMultiple Airlines
Wed 27/89:10 a.m.YYZ - BOS
2 stops9h 18mMultiple Airlines
Deal found 30/7C$ 322
Sat 15/115:30 a.m.BOS - YTZ
1 stop6h 25mAir Canada
Wed 19/118:30 a.m.YTZ - BOS
1 stop6h 22mAir Canada
Deal found 31/7C$ 353
Sat 15/116:55 p.m.BOS - YTZ
Nonstop1h 59mMultiple Airlines
Wed 19/117:45 a.m.YTZ - BOS
2 stops10h 25mMultiple Airlines
Deal found 30/7C$ 368
Sat 13/91:00 p.m.BOS - YYZ
1 stop7h 34mDelta
Mon 15/96:15 a.m.YYZ - BOS
1 stop9h 04mDelta
Deal found 29/7C$ 371
Mon 15/911:00 a.m.ALB - YYZ
2 stops27h 05mMultiple Airlines
Thu 18/96:30 a.m.YYZ - ALB
2 stops27h 40mMultiple Airlines
Deal found 29/7C$ 401
Mon 8/912:40 p.m.BOS - YOW
1 stop3h 54mPorter Airlines
Mon 15/91:25 p.m.YOW - BOS
1 stop3h 26mPorter Airlines
Deal found 30/7C$ 418
Thu 28/86:40 p.m.BOS - YUL
Nonstop1h 25mAir Canada
Sun 31/88:05 a.m.YUL - BOS
Nonstop1h 25mAir Canada
Deal found 29/7C$ 443
Fri 5/93:30 p.m.BOS - YOW
Nonstop1h 28mMultiple Airlines
Sat 6/94:30 p.m.YOW - BOS
Nonstop1h 28mMultiple Airlines
Deal found 29/7C$ 446
Tue 26/86:10 a.m.BOS - YUL
2 stops11h 45mMultiple Airlines
Tue 2/910:45 a.m.YUL - BOS
1 stop3h 56mMultiple Airlines
Deal found 29/7C$ 450
Mon 15/96:00 a.m.BDL - YYZ
1 stop8h 25mMultiple Airlines
Thu 18/97:15 a.m.YYZ - BDL
2 stops15h 49mMultiple Airlines
Deal found 31/7C$ 453

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 629,999 searches. Data last updated 1 August 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 - YYZ

BOSYYZ

Boston Logan Intl

Thu 4/9

6:00 a.m.-7:56 a.m.

Nonstop1h 56m

Toronto Pearson Intl

Tue 16/9

5:00 p.m.-9:25 p.m.

1 stop4h 25m

C$ 317

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 3/9

3:30 p.m.-7:03 p.m.

1 stop3h 33m

Toronto Island

Mon 8/9

1:00 p.m.-2:41 p.m.

Nonstop1h 41m

C$ 317

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 21/8

5:50 a.m.-11:40 a.m.

1 stop5h 50m

Toronto Pearson Intl

Wed 27/8

9:10 a.m.-6:28 p.m.

2 stops9h 18m

C$ 322

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 25/8

7:15 p.m.-9:04 p.m.

Nonstop1h 49m

Toronto Island

Tue 26/8

7:50 p.m.-9:31 p.m.

Nonstop1h 41m

C$ 369

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 13/9

1:00 p.m.-8:34 p.m.

1 stop7h 34m

Toronto Pearson Intl

Mon 15/9

6:15 a.m.-3:19 p.m.

1 stop9h 04m

C$ 371

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 2/10

6:00 a.m.-11:45 a.m.

1 stop5h 45m

Toronto Island

Mon 6/10

5:25 p.m.-9:25 p.m.

1 stop4h 00m

C$ 374

AlbanyToronto

ALB - YYZ

ALBYYZ

Albany Intl

Mon 15/9

11:00 a.m.-2:05 p.m.

2 stops27h 05m

Toronto Pearson Intl

Thu 18/9

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

2 stops27h 40m

C$ 401

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 8/9

12:40 p.m.-4:34 p.m.

1 stop3h 54m

Ottawa

Mon 15/9

1:25 p.m.-4:51 p.m.

1 stop3h 26m

C$ 418

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 28/8

6:40 p.m.-8:05 p.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 31/8

8:05 a.m.-9:30 a.m.

Nonstop1h 25m

C$ 443

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 5/9

3:30 p.m.-4:58 p.m.

Nonstop1h 28m

Ottawa

Sat 6/9

4:30 p.m.-5:58 p.m.

Nonstop1h 28m

C$ 446

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 60 results
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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 C$ 167). Flying from Massachusetts to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 1 August 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 1 August 2025.

The most flights from USMA to CAON are scheduled on a Wednesday (14 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 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 1 August 2025.
See what other customers who have flown with Porter Airlines,Delta, andAir Transat from Massachusetts to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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
7,981 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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
8,900 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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
Check prices

Comfort

8.0

Overall

8.0

Boarding

8.2

Food

7.6

Crew

8.7

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?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 145. Air Canada flights start at C$ 147 while deals on Air Transat start at C$ 158 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 C$ 167). Flying from Massachusetts to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

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Alternative routes for Massachusetts to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Massachusetts to Ontario

Discover the top 3 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 629,999 searches. Data last updated 1 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 208AverageC$ 495FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 295AverageC$ 463FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 344AverageC$ 533FlexibilityNo 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 Massachusetts to Ontario?

Cheapflights makes it easy to find Massachusetts to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Massachusetts to Ontario?

Cheapflights simply makes it quick and affordable to book flights from Massachusetts to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Massachusetts to Ontario with no change fees.

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

Of course! You can now track prices for flights from Massachusetts to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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