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$86+ Cheap flights from Boston (BOS) to Ontario

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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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 October 29, 2025.

This Booking.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:40 pmBOS - YYZ
1 stop5h 24mAir Canada
Thu 12/48:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/28$213
This Air Canada deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Sat 11/228:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/27$221
This Air Canada deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:30 amBOS - YYZ
1 stop6h 10mAir Canada
Sat 11/224:20 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/27$226
This Air Canada deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:30 amBOS - YYZ
1 stop5h 19mAir Canada
Thu 11/2010:00 amYYZ - BOS
1 stop4h 52mAir Canada
Deal found 10/27$231
This Sembo deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:30 amBOS - YYZ
1 stop6h 10mAir Canada
Sun 11/238:15 amYYZ - BOS
2 stops6h 37mAir Canada
Deal found 10/28$234
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Fri 11/288:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$235
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Tue 12/91:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$236
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 12/71:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/27$238
This Trip.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 11/238:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/28$239
This Trip.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 11/201:20 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/27$240
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:30 amBOS - YYZ
1 stop6h 10mAir Canada
Mon 11/178:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 10/27$241
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/253:40 pmBOS - YTZ
1 stop6h 23mPorter Airlines
Tue 12/28:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/26$241

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 October 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$213
(Booking.com)

One-way from

$86
(Air Canada)

Popular in

November

Cheapest in

September

Average price

$319

Good round-trip deal

$279 or less

Good one-way deal

$140 or less
Provider with most accurate pricing for Boston Logan Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Toronto (YTO) flights.
Search Deals
From Boston Logan Intl to Ontario
Search Deals
One-way flight from Boston Logan Intl to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 2,558,603 searches. Data last updated October 29, 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

Mon 1/26

3:30 pm-7:08 pm

1 stop3h 38m

Toronto Island

Mon 2/2

1:10 pm-2:45 pm

Nonstop1h 35m

$241

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 11/20

3:40 pm-10:03 pm

1 stop6h 23m

Toronto Island

Sun 11/23

8:00 am-9:35 am

Nonstop1h 35m

$245

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 12/12

3:40 pm-5:09 pm

Nonstop1h 29m

Ottawa

Sun 12/14

4:45 pm-6:11 pm

Nonstop1h 26m

$258

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 11/20

3:40 pm-5:06 pm

Nonstop1h 26m

Ottawa

Mon 11/24

4:45 pm-6:11 pm

Nonstop1h 26m

$262

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 12/8

3:40 pm-5:09 pm

Nonstop1h 29m

Ottawa

Thu 12/11

4:45 pm-6:11 pm

Nonstop1h 26m

$268

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 12/5

7:00 am-11:29 am

1 stop4h 29m

Ottawa

Mon 12/8

4:35 pm-10:05 pm

1 stop5h 30m

$270

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 11/10

7:00 am-8:55 am

Nonstop1h 55m

Toronto Island

Thu 11/13

11:05 am-12:40 pm

Nonstop1h 35m

$276

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 1/15

9:00 am-3:04 pm

1 stop6h 04m

Ottawa

Mon 1/19

4:55 pm-6:10 pm

Nonstop1h 15m

$276

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 11/20

10:15 am-2:07 pm

1 stop3h 52m

Ottawa

Mon 11/24

4:45 pm-6:11 pm

Nonstop1h 26m

$277

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Mon 1/12

3:30 pm-4:59 pm

Nonstop1h 29m

Ottawa

Thu 1/15

3:05 pm-8:30 pm

1 stop5h 25m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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, October is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $110). Flying from Boston to Region of Ontario in December is currently the most expensive (average of $160). 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 October 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Region of Ontario at noon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the afternoon.

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 December 16, 2024.

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

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 October 29, 2025.
Read through reviews of airlines operating flights from Boston to Ontario, such as Porter Airlines, Air Transat, and United Airlines. 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
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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
7.8
Good
469 reviews
Porter Airlines
8.0
Very good
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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
9,001 reviews
Porter Airlines
8.0
Very good
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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.
American Airlines
7.2
Good
11,032 reviews
Porter Airlines
8.0
Very good
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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
10,372 reviews
Porter Airlines
8.0
Very good
384 reviews

Boarding

8.2

Crew

8.6

Comfort

8.0

Entertainment

7.0

Overall

8.0

Food

7.6

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?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Ontario. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

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

    There are many flights that can get you from Boston to Region of Ontario in 3h 38m. Fly via Porter Airlines, Air Canada, or United Airlines to get the fastest option. The distance between Boston and Region of Ontario is about 432 mi. When browsing for deals, the options you’ll see will be for both nonstop 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 $109. Air Canada flights start at $115 while deals on Air Transat start at $133 one-way.

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

    The most popular flight routes from Boston to Region of Ontario are Boston Logan Intl - Toronto Pearson Intl, Boston Logan Intl - Toronto Island and Boston Logan Intl - Montreal Pierre Elliott Trudeau Intl.

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

    Consider Brussels Airlines (79%), ITA Airways (72%) or United Airlines (66%) when booking your flight. These represent the most reliable airlines when flying from Boston to Region of Ontario.

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

    While on average a flight from Boston to Region of Ontario is generally $396, our data shows the cheapest flight currently is $113. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $243 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, October is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $110). Flying from Boston to Region of Ontario in December is currently the most expensive (average of $160). 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.

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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.
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Top 5 airlines flying from Boston to Ontario

Discover the top 5 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 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$126Average$419FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$210Average$562FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$229Average$361FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$243Average$376FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$360FlexibilityNo cancel feeOn-time71%

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