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Cheap flights from Boston to Ontario from C$ 146

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 25/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Boston to Ontario

Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated 13 June 2025.

Round-trip from

C$ 301

One-way from

C$ 146

Popular in

November

Cheapest in

July

Average price

C$ 405

Good round-trip deal

C$ 356 or less

Good one-way deal

C$ 155 or less
Air Canada
  • Air Canada
  • 3/7-10/7
  • Nonstop
  • 3h 38m total
  • Boston to Ontario
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Porter Airlines
  • Porter Airlines
  • 25/6
  • Nonstop
  • 1h 28m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Ontario.
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Price to beat on a one-way flight from Boston Logan Intl to Ontario.
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Find flight deals from Boston to Ontario

Cheapest flights from Boston to Ontario
Explore the most affordable flight options available from Boston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Thu 10/78:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Mon 14/73:00 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 11/6C$ 301
Sun 27/75:50 a.m.BOS - YYZ
1 stop4h 50mAir Canada
Sun 3/88:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 12/6C$ 304
Fri 18/75:50 a.m.BOS - YTZ
2 stops5h 41mMultiple Airlines
Fri 25/71:00 p.m.YTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 11/6C$ 304
Wed 29/109:45 a.m.BOS - YYZ
1 stop4h 30mPorter Airlines
Sun 2/112:00 p.m.YYZ - BOS
1 stop4h 15mPorter Airlines
Deal found 12/6C$ 314
Fri 20/65:25 p.m.BOS - YUL
1 stop4h 50mPorter Airlines
Sat 21/610:45 a.m.YUL - BOS
1 stop4h 21mPorter Airlines
Deal found 11/6C$ 344
Sat 29/116:00 a.m.BOS - YTZ
1 stop5h 50mAir Canada
Fri 12/1210:25 a.m.YTZ - BOS
1 stop4h 13mAir Canada
Deal found 10/6C$ 350
Tue 2/126:30 p.m.BOS - YYZ
1 stop4h 14mDelta
Tue 9/127:59 a.m.YYZ - BOS
1 stop7h 23mDelta
Deal found 10/6C$ 360
Thu 25/93:30 p.m.BOS - YOW
Nonstop1h 28mPorter Airlines
Mon 29/95:00 p.m.YOW - BOS
Nonstop1h 28mPorter Airlines
Deal found 10/6C$ 361
Sat 23/86:10 a.m.BOS - YYZ
1 stop9h 36mUnited Airlines
Sat 23/86:00 p.m.YYZ - BOS
1 stop5h 08mUnited Airlines
Deal found 11/6C$ 363
Wed 9/76:40 p.m.BOS - YUL
Nonstop1h 25mAir Canada
Mon 21/78:10 a.m.YUL - BOS
Nonstop1h 25mAir Canada
Deal found 10/6C$ 365
Thu 10/75:25 p.m.BOS - YUL
1 stop4h 50mMultiple Airlines
Mon 14/78:30 p.m.YUL - BOS
Nonstop1h 26mMultiple Airlines
Deal found 12/6C$ 369
Wed 13/86:55 p.m.BOS - YYZ
1 stop19h 10mMultiple Airlines
Sun 17/86:30 a.m.YYZ - BOS
1 stop17h 19mMultiple Airlines
Deal found 12/6C$ 384

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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 13 June 2025.
Use the filters below to find and compare flights from Boston to Ontario that are best for you.

Fly from

Boston

Fly to

Ontario

Route

Depart

Return

Price

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 3/7

6:00 a.m.-7:55 a.m.

Nonstop1h 55m

Toronto Pearson Intl

Thu 10/7

9:45 a.m.-11:28 a.m.

Nonstop1h 43m

C$ 301

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 10/7

8:45 a.m.-10:34 a.m.

Nonstop1h 49m

Toronto Island

Mon 14/7

3:00 p.m.-4:41 p.m.

Nonstop1h 41m

C$ 301

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 18/7

5:50 a.m.-11:31 a.m.

2 stops5h 41m

Toronto Island

Fri 25/7

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

Nonstop1h 41m

C$ 304

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 4/9

6:55 p.m.-1:50 a.m.

1 stop6h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

1:05 p.m.-2:30 p.m.

Nonstop1h 25m

C$ 344

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Mon 23/6

5:25 p.m.-10:15 p.m.

1 stop4h 50m

Montreal Pierre Elliott Trudeau Intl

Sat 28/6

2:30 p.m.-7:36 p.m.

1 stop5h 06m

C$ 346

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 1/9

10:20 a.m.-4:46 p.m.

1 stop6h 26m

Toronto Island

Wed 3/9

8:50 a.m.-2:30 p.m.

2 stops5h 40m

C$ 356

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 25/9

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

Nonstop1h 28m

Ottawa

Mon 29/9

5:00 p.m.-6:28 p.m.

Nonstop1h 28m

C$ 361

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 9/7

5:30 a.m.-2:19 p.m.

1 stop8h 49m

Toronto Pearson Intl

Wed 9/7

5:15 p.m.-11:32 p.m.

1 stop6h 17m

C$ 363

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Fri 3/10

6:00 a.m.-7:25 a.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 8/10

10:45 a.m.-2:41 p.m.

1 stop3h 56m

C$ 363

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 25/6

12:00 p.m.-4:14 p.m.

1 stop4h 14m

Toronto Pearson Intl

Mon 30/6

6:15 a.m.-2:20 p.m.

1 stop8h 05m

C$ 382

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 57 results
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Best time to book a flight from Boston to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 167). Flying from Boston to Region of Ontario in July is currently the most expensive (average of C$ 255). 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 BOS to ON?

Find hourly flight availability from Boston 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 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Region of Ontario as you normally would.

Weekly flight availability from Boston to Region of Ontario

Explore weekly flight availability from Boston 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 13 June 2025.

The most flights from BOS to CAON are scheduled on a Thursday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 13 June 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and Air Transat from Boston to Ontario to help guide your decision. 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
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Delta
8.0
Very good
7,946 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Transat
7.8
Good
396 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Aeromexico
7.5
Good
1,706 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews
Check prices

Food

7.6

Entertainment

7.0

Overall

8.0

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

Related info for your journey

Find useful and relevant information for your journey from Boston to Ontario. 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 from for flights from Boston to Ontario?

    For a flight from Boston to Ontario, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 4.2 km from the centre of the city.

  • What are the cheapest airlines to fly from Boston 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$ 146. Air Canada flights start at C$ 151 while deals on Air Transat start at C$ 154 one-way.

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

    The most popular route from Boston to Region of Ontario is Boston Logan Intl - Toronto Pearson Intl. You may also consider Boston Logan Intl - Toronto Island or Boston Logan Intl - Montreal Pierre Elliott Trudeau Intl.

  • What are the most reliable airlines from Boston to Region of Ontario?

    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 Boston to Region of Ontario on time: Brussels Airlines (85%), Jazz (84%), Air Canada (77%).

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

    While on average a flight from Boston to Region of Ontario is generally C$ 364, our data shows the cheapest flight currently is C$ 127. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 301 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 167). Flying from Boston to Region of Ontario in July is currently the most expensive (average of C$ 255). 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

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Alternative routes for Boston to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Pearson Intl flights
Boston to Vancouver Intl flights
Boston to Toronto Island flights
Boston to Pierre Elliott Trudeau Intl flights
Boston to Halifax flights
Boston to Calgary flights
Boston to Abbotsford flights
Boston to Québec City flights
Boston to St. John's flights
Boston to Ottawa flights
Hartford to Pearson Intl flights
Hartford to Vancouver Intl flights
Boston to Winnipeg flights
Albany to Calgary flights
Hartford to Pierre Elliott Trudeau Intl flights
Boston to Charlottetown flights
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Boston to Moncton flights
Hartford to Halifax flights
Albany to Vancouver Intl flights
Boston to Edmonton flights
Hartford to Québec City flights
Albany to Pearson Intl flights
Boston to Victoria flights
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Albany to Pierre Elliott Trudeau Intl flights
West Tisbury to Halifax flights
Albany to Halifax flights
Boston to Deer Lake flights
Hartford to St. John's flights
Boston to St John flights
Boston to Windsor flights
Boston to Saskatoon flights
Hartford to Edmonton flights
Boston to Kelowna flights
Albany to Edmonton flights
Hartford to Ottawa flights
Hartford to Winnipeg flights
Boston to Nanaimo flights
Boston to Regina flights
Boston to Fort McMurray flights

Top 3 airlines flying from Boston to Ontario

Discover the top 3 airlines that operate flights from Boston 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 204AverageC$ 472FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 290AverageC$ 458FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 339AverageC$ 525FlexibilityNo 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 Boston to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Ontario. 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 Boston to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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Of course! You can now track prices for flights from Boston 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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