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Cheap flights from Boston to Ontario from C$ 128

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Boston to Ontario

Enter your travel dates to find the best prices.

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 18 November 2025.

Mon 22/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Fri 26/1211:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 16/11C$ 314
Thu 11/121:25 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Mon 15/128:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 17/11C$ 317
Thu 11/123:40 p.m.BOS - YYZ
1 stop4h 33mMultiple Airlines
Mon 15/127:10 a.m.YYZ - BOS
1 stop26h 51mMultiple Airlines
Deal found 18/11C$ 322
Fri 19/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Sat 3/18:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 17/11C$ 322
Mon 8/121:25 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Mon 15/128:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 17/11C$ 324
Mon 22/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Mon 5/11:10 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 17/11C$ 325
Mon 8/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Wed 17/128:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 17/11C$ 327
Thu 11/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Fri 12/1210:40 a.m.YTZ - BOS
2 stops7h 31mPorter Airlines
Deal found 17/11C$ 331
Sun 7/1212:57 p.m.BOS - YYZ
1 stop22h 46mMultiple Airlines
Mon 15/127:10 a.m.YYZ - BOS
1 stop26h 51mMultiple Airlines
Deal found 17/11C$ 337
Thu 11/126:15 a.m.BOS - YYZ
Nonstop2h 02mAir Canada
Mon 15/1210:30 a.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 18/11C$ 342
Thu 11/125:45 a.m.BOS - YYZ
1 stop8h 55mMultiple Airlines
Sat 13/127:00 a.m.YYZ - BOS
1 stop16h 56mMultiple Airlines
Deal found 16/11C$ 344
Tue 9/128:11 p.m.BOS - YOW
2 stops21h 14mMultiple Airlines
Fri 16/14:20 p.m.YOW - BOS
3 stops24h 48mMultiple Airlines
Deal found 17/11C$ 381

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 18 November 2025.

Round-trip from

C$ 314

One-way from

C$ 128

Popular in

November

Cheapest in

October

Average price

C$ 564

Good round-trip deal

C$ 418 or less

Good one-way deal

C$ 216 or less
Porter Airlines
  • Porter Airlines
  • 22/12-26/12
  • Nonstop
  • 3h 30m total
  • Boston to Ontario
Search Deals
16/12
  • 16/12
  • 1 total stop
  • 28h 00m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 54 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 November 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Ontario.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Ontario.
Search Deals

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 18 November 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 - YTZ

BOSYTZ

Boston Logan Intl

Tue 13/1

6:55 p.m.-8:50 p.m.

Nonstop1h 55m

Toronto Island

Wed 21/1

2:05 p.m.-6:10 p.m.

1 stop4h 05m

C$ 321

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 12/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Sat 3/1

8:00 a.m.-9:35 a.m.

Nonstop1h 35m

C$ 322

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 17/12

10:20 a.m.-12:15 p.m.

Nonstop1h 55m

Toronto Island

Mon 29/12

8:30 p.m.-10:05 p.m.

Nonstop1h 35m

C$ 324

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 22/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

Toronto Island

Fri 26/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 325

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 22/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

Toronto Island

Wed 24/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 325

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 19/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

Toronto Island

Tue 23/12

11:05 a.m.-12:40 p.m.

Nonstop1h 35m

C$ 325

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 3/12

10:20 a.m.-12:15 p.m.

Nonstop1h 55m

Toronto Island

Tue 30/12

8:30 p.m.-10:05 p.m.

Nonstop1h 35m

C$ 345

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 19/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

Toronto Island

Sun 21/12

8:00 a.m.-9:35 a.m.

Nonstop1h 35m

C$ 355

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 19/12

7:00 a.m.-8:55 a.m.

Nonstop1h 55m

Toronto Island

Fri 2/1

8:00 a.m.-9:35 a.m.

Nonstop1h 35m

C$ 358

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 16/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Tue 23/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 384

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/11

Showing 1-10 of 60 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, April is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 164). Flying from Boston to Region of Ontario in November is currently the most expensive (average of C$ 271). 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 18 November 2025.

When flying from Boston to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 20% versus a flight at noon.

What is the cheapest day to fly from Boston to Region of Ontario?

Use this chart to determine the cheapest time to fly round-trip from Boston to Ontario. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Boston to Region of Ontario flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 18 November 2025.

The most flights from BOS to CAON are scheduled on a Monday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).

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 18 November 2025.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAir Canada from Boston to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
392 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
392 reviews
Porter Airlines
8.0
Very good
392 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,015 reviews
Porter Airlines
8.0
Very good
392 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,459 reviews
Porter Airlines
8.0
Very good
392 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

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.

  • How long is the flight from Boston to Region of Ontario?

    For as low as C$ 321, Porter Airlines can have you in Region of Ontario from Boston in 1h 55m. Boston and Region of Ontario are separated by a distance of 695 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 (76%), United Airlines (63%), ITA Airways (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$ 634, our data shows the cheapest flight currently is C$ 178. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 294 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, April is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 164). Flying from Boston to Region of Ontario in November is currently the most expensive (average of C$ 271). 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 Pierre Elliott Trudeau Intl flights
Boston to Vancouver Intl flights
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Hartford to Vancouver Intl flights
Boston to Ottawa flights
Hartford to Pearson Intl flights
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Boston to Kelowna flights
Albany to Pearson Intl flights
Boston to St. John's flights
Hartford to Pierre Elliott Trudeau Intl flights
Albany to Vancouver Intl flights
Boston to Regina flights
Albany to Pierre Elliott Trudeau Intl flights
Hartford to Québec City flights
Boston to Victoria flights
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Boston to Charlottetown flights
Boston to Winnipeg flights
Boston to Edmonton flights
Hartford to Winnipeg flights
Hartford to Ottawa flights
Hartford to Victoria flights
Albany to Calgary flights
Hartford to Halifax flights
Worcester to Vancouver Intl flights
Boston to Fort McMurray flights
Boston to Windsor flights
Boston to Saskatoon flights
Albany to Edmonton flights
Boston to Thunder Bay flights
Boston to Gander flights
New Bedford to Pierre Elliott Trudeau Intl flights
Hartford to Edmonton flights
Provincetown to Pierre Elliott Trudeau Intl flights
Boston to Nanaimo 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 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 274AverageC$ 453FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 308AverageC$ 458FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 349AverageC$ 564FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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