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Cheap flights from Boston to Ontario from C$ 139

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
20 Apr — 27 Apr1
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 15 April 2025.

Round-trip from

C$ 289

One-way from

C$ 139

Popular in

November

Cheapest in

March

Average price

C$ 485

Good round-trip deal

C$ 313 or less

Good one-way deal

C$ 154 or less
Porter Airlines
  • Porter Airlines
  • 24/5-25/5
  • 2 total stops
  • 10h 11m total
  • Boston to Ontario
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American Airlines
  • American Airlines
  • 29/4
  • 1 total stop
  • 4h 20m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
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Average for round-trip flights in April 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 15 April 2025.

Sat 24/512:15 p.m.BOS - YUL
1 stop5h 40mPorter Airlines
Sun 25/57:00 a.m.YUL - BOS
1 stop4h 31mPorter Airlines
Deal found 14/4C$ 289
Tue 13/58:20 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Wed 21/55:55 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/4C$ 296
Wed 14/53:50 p.m.BOS - YTZ
1 stop3h 37mMultiple Airlines
Sat 17/53:25 p.m.YTZ - BOS
1 stop6h 32mMultiple Airlines
Deal found 15/4C$ 309
Wed 14/53:49 p.m.BOS - YYZ
1 stop22h 16mMultiple Airlines
Sat 17/58:15 a.m.YYZ - BOS
Nonstop1h 40mMultiple Airlines
Deal found 14/4C$ 314
Thu 8/55:50 a.m.BOS - YUL
Nonstop1h 25mMultiple Airlines
Sun 11/54:45 p.m.YUL - BOS
1 stop4h 46mMultiple Airlines
Deal found 14/4C$ 314
Sat 14/66:20 p.m.BOS - YYZ
1 stop4h 49mAir Canada
Sun 15/68:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 14/4C$ 320
Wed 14/53:20 p.m.BOS - YTZ
1 stop6h 15mAir Canada
Sat 17/55:25 p.m.YTZ - BOS
1 stop4h 32mAir Canada
Deal found 14/4C$ 320
Wed 7/510:20 a.m.BOS - YUL
Nonstop1h 25mAir Canada
Thu 8/54:30 p.m.YUL - BOS
Nonstop1h 27mAir Canada
Deal found 14/4C$ 320
Thu 8/58:45 a.m.BOS - YOW
Nonstop1h 28mPorter Airlines
Sun 11/53:25 p.m.YOW - BOS
1 stop4h 11mPorter Airlines
Deal found 14/4C$ 320
Fri 30/53:50 p.m.BOS - YOW
Nonstop1h 28mMultiple Airlines
Fri 6/69:05 a.m.YOW - BOS
1 stop5h 27mMultiple Airlines
Deal found 15/4C$ 328
Sat 24/56:55 p.m.BOS - YUL
Nonstop1h 25mUnited Airlines
Mon 26/58:10 a.m.YUL - BOS
Nonstop1h 25mUnited Airlines
Deal found 15/4C$ 371
Tue 13/55:50 a.m.BOS - YOW
1 stop3h 11mAir Canada
Thu 15/59:05 a.m.YOW - BOS
1 stop5h 27mAir Canada
Deal found 14/4C$ 375

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 15 April 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

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Sat 24/5

12:15 p.m.-5:55 p.m.

1 stop5h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 25/5

7:00 a.m.-11:31 a.m.

1 stop4h 31m

C$ 289

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 13/5

8:20 p.m.-10:09 p.m.

Nonstop1h 49m

Toronto Island

Wed 21/5

5:55 p.m.-7:36 p.m.

Nonstop1h 41m

C$ 296

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 14/5

3:50 p.m.-7:27 p.m.

1 stop3h 37m

Toronto Island

Sat 17/5

3:25 p.m.-9:57 p.m.

1 stop6h 32m

C$ 309

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 14/5

3:49 p.m.-2:05 p.m.

1 stop22h 16m

Toronto Pearson Intl

Sat 17/5

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 314

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 8/5

5:50 a.m.-7:15 a.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 11/5

4:45 p.m.-9:31 p.m.

1 stop4h 46m

C$ 314

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 14/6

6:20 p.m.-11:09 p.m.

1 stop4h 49m

Toronto Pearson Intl

Sun 15/6

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 320

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 14/5

3:20 p.m.-9:35 p.m.

1 stop6h 15m

Toronto Island

Sat 17/5

5:25 p.m.-9:57 p.m.

1 stop4h 32m

C$ 320

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 7/5

10:20 a.m.-11:45 a.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

4:30 p.m.-5:57 p.m.

Nonstop1h 27m

C$ 320

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 8/5

8:45 a.m.-10:13 a.m.

Nonstop1h 28m

Ottawa

Sun 11/5

3:25 p.m.-7:36 p.m.

1 stop4h 11m

C$ 320

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 8/5

5:50 a.m.-10:25 a.m.

1 stop4h 35m

Ottawa

Sun 11/5

3:25 p.m.-9:31 p.m.

1 stop6h 06m

C$ 335

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 56 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$ 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 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 15 April 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 15 April 2025.

The most flights from BOS to CAON are scheduled on a Tuesday (13 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 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 15 April 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
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
8.0
Very good
281 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Delta
8.0
Very good
7,918 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Transat
7.8
Good
385 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
United Airlines
7.4
Good
8,658 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Food

7.6

Overall

8.0

Boarding

8.2

Crew

8.7

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

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 American Airlines, which is currently one of the cheapest options available, starting at C$ 139. Porter Airlines flights start at C$ 140 while deals on Air Canada start at C$ 145 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: Air Canada (68%), Jazz (67%), United Airlines (61%).

  • 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$ 369, our data shows the cheapest flight currently is C$ 128. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 314 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$ 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

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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 Toronto Island flights
Boston to Vancouver Intl flights
Boston to Calgary flights
Boston to Pierre Elliott Trudeau Intl flights
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Boston to Kelowna flights
Boston to St John flights
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Boston to Regina flights
Hartford to St. John's flights
Hartford to Ottawa flights
West Tisbury to Halifax flights
Albany to Edmonton flights
Hartford to Edmonton flights
Boston to Nanaimo flights
Provincetown to Pierre Elliott Trudeau Intl flights
Worcester to Vancouver Intl flights
Hyannis to Halifax 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 209AverageC$ 512FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 260AverageC$ 492FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 346AverageC$ 512FlexibilityNo 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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