Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Boston to Ontario from C$ 138

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

C$ 289

One-way from

C$ 138

Popular in

November

Cheapest in

March

Average price

C$ 392

Good round-trip deal

C$ 375 or less

Good one-way deal

C$ 247 or less
Air Canada
  • Air Canada
  • 12/10-19/10
  • Nonstop
  • 3h 36m total
  • Boston to Ontario
Search Deals
20/10
  • 20/10
  • 1 total stop
  • 17h 41m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 71 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 September 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

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 17 September 2025.

Sun 12/106:00 a.m.BOS - YYZ
Nonstop1h 56mAir Canada
Sun 19/108:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 15/9C$ 289
Sat 1/1110:20 a.m.BOS - YTZ
Nonstop1h 59mMultiple Airlines
Sat 8/118:30 a.m.YTZ - BOS
1 stop6h 22mMultiple Airlines
Deal found 17/9C$ 289
Thu 16/1010:20 a.m.BOS - YTZ
1 stop4h 25mMultiple Airlines
Mon 20/108:20 p.m.YTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 16/9C$ 292
Thu 16/108:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 19/109:50 a.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/9C$ 293
Mon 27/106:40 p.m.BOS - YYZ
1 stop5h 24mAir Canada
Fri 31/102:15 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 15/9C$ 296
Sun 12/108:20 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 19/109:50 a.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/9C$ 296
Thu 23/1010:40 a.m.BOS - YYZ
Nonstop1h 55mAir Canada
Fri 24/104:25 p.m.YYZ - BOS
Nonstop1h 45mAir Canada
Deal found 16/9C$ 299
Tue 14/107:15 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Tue 21/103:10 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 14/9C$ 299
Wed 15/1010:10 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Wed 22/103:10 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/9C$ 300
Mon 6/108:24 p.m.BOS - YYZ
1 stop17h 41mMultiple Airlines
Tue 14/106:30 a.m.YYZ - BOS
1 stop28h 56mMultiple Airlines
Deal found 15/9C$ 301
Thu 23/108:24 p.m.BOS - YYZ
1 stop17h 41mMultiple Airlines
Tue 28/1011:15 a.m.YYZ - BOS
1 stop12h 44mMultiple Airlines
Deal found 15/9C$ 303
Mon 6/108:45 a.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Wed 8/108:20 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/9C$ 303

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 17 September 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

Wed 22/10

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

Nonstop1h 49m

Toronto Island

Wed 29/10

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

Nonstop1h 35m

C$ 303

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 18/10

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

Nonstop1h 49m

Toronto Island

Tue 21/10

9:50 a.m.-11:31 a.m.

Nonstop1h 41m

C$ 307

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 8/11

3:40 p.m.-7:55 p.m.

1 stop4h 15m

Toronto Island

Tue 11/11

3:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 310

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 23/10

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

Nonstop1h 49m

Toronto Island

Sun 26/10

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

Nonstop1h 35m

C$ 340

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 30/10

10:20 a.m.-12:19 p.m.

Nonstop1h 59m

Toronto Island

Thu 6/11

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

Nonstop1h 35m

C$ 358

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 15/11

10:20 a.m.-12:19 p.m.

Nonstop1h 59m

Toronto Island

Wed 19/11

10:40 a.m.-6:10 p.m.

2 stops7h 30m

C$ 371

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 13/10

8:45 a.m.-12:59 p.m.

1 stop4h 14m

Ottawa

Mon 20/10

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

Nonstop1h 28m

C$ 373

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 17/10

12:15 p.m.-4:34 p.m.

1 stop4h 19m

Ottawa

Mon 20/10

8:35 a.m.-2:41 p.m.

1 stop6h 06m

C$ 377

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Tue 7/10

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

Nonstop1h 28m

Ottawa

Mon 20/10

3:50 p.m.-11:26 a.m.

1 stop19h 36m

C$ 378

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 7/10

10:40 a.m.-12:35 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Tue 14/10

8:55 p.m.-10:39 p.m.

Nonstop1h 44m

C$ 381

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

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

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$ 169). 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 17 September 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 17 September 2025.

The most flights from BOS to CAON are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Boston 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 17 September 2025.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andUnited Airlines 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
7.9
Good
365 reviews
Check prices

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
365 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
439 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,926 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
365 reviews
Check prices

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Crew

8.6

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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$ 303, Porter Airlines can have you in Region of Ontario from Boston in 1h 49m. 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 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$ 138. Air Canada flights start at C$ 142 while deals on WestJet start at C$ 238 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 (86%), ITA Airways (81%), Jazz (73%).

  • 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$ 602, 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$ 286 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$ 169). 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

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 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
Boston to Halifax flights
Boston to Calgary flights
Boston to Ottawa flights
Boston to Abbotsford flights
Hartford to Pearson Intl flights
Boston to Québec City flights
Boston to Edmonton flights
Hartford to Vancouver Intl flights
Hartford to Pierre Elliott Trudeau Intl flights
Albany to Pearson Intl flights
Boston to St. John's flights
Hartford to Calgary flights
Boston to Winnipeg flights
Hartford to Halifax flights
Boston to Kelowna flights
Albany to Pierre Elliott Trudeau Intl flights
Boston to Charlottetown flights
Albany to Vancouver Intl flights
Hartford to Ottawa flights
Boston to Hamilton flights
Hartford to Québec City flights
Boston to Sydney flights
Boston to St John flights
Hartford to Winnipeg flights
Hartford to Edmonton flights
Albany to Calgary flights
Albany to Edmonton flights
Hartford to Victoria flights
Boston to Victoria flights
Boston to Moncton flights
Albany to Halifax flights
Boston to Regina flights
Boston to Windsor flights
Boston to Deer Lake flights
Boston to Saskatoon flights
Boston to Nanaimo flights
Hartford to St. John's flights
Provincetown to Pierre Elliott Trudeau Intl flights
Albany to Victoria 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 269AverageC$ 467FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 302AverageC$ 472FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 342AverageC$ 540FlexibilityNo 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.

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

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.

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.