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$101+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/307:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Tue 1/610:30 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/11$261
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Wed 12/3110:20 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Wed 1/76:55 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/11$262
This Booking.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Thu 1/88:55 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 12/10$271
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 12/3010:20 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Fri 1/28:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/10$277
This Kissandfly.com deal was found by Cheapflights users on 12/10. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/810:40 amYTZ - BOS
2 stops7h 30mPorter Airlines
Deal found 12/10$288
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/307:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/11:10 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/9$289
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/317:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/11:10 pmYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/9$296
This FlightHub deal was found by Cheapflights users on 12/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:40 pmBOS - YTZ
1 stop6h 23mMultiple Airlines
Wed 12/318:00 amYTZ - BOS
Nonstop1h 35mMultiple Airlines
Deal found 12/10$309
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Sun 12/287:00 amBOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/111:05 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 12/10$311
This Air Canada deal was found by Cheapflights users on 12/11. 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 12/316:15 amBOS - YYZ
Nonstop2h 02mAir Canada
Tue 1/612:30 amYYZ - BOS
1 stop9h 02mAir Canada
Deal found 12/11$312
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/3110:20 amBOS - YUL
1 stop5h 00mPorter Airlines
Mon 1/56:25 pmYUL - BOS
1 stop3h 40mPorter Airlines
Deal found 12/10$323
This Flightnetwork deal was found by Cheapflights users on 12/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 amBOS - YUL
1 stop6h 55mPorter Airlines
Thu 1/810:45 amYUL - BOS
1 stop4h 00mPorter Airlines
Deal found 12/10$331

Find flight deals from Boston to Ontario

Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated December 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$230
(Air Canada)

One-way from

$101
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$367

Good round-trip deal

$274 or less

Good one-way deal

$132 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. 12% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 12, 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 1/22

10:45 am-12:48 pm

Nonstop2h 03m

Toronto Pearson Intl

Mon 1/26

1:00 pm-7:42 pm

1 stop6h 42m

$230

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 1/30

5:30 am-11:40 am

1 stop6h 10m

Toronto Pearson Intl

Mon 2/2

9:00 am-2:52 pm

1 stop5h 52m

$238

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 2/26

6:55 pm-8:52 pm

Nonstop1h 57m

Toronto Island

Fri 2/27

8:30 pm-10:05 pm

Nonstop1h 35m

$239

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 1/22

3:30 pm-7:08 pm

1 stop3h 38m

Toronto Island

Mon 1/26

2:05 pm-6:10 pm

1 stop4h 05m

$241

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 1/16

3:30 pm-7:08 pm

1 stop3h 38m

Toronto Island

Mon 1/19

1:10 pm-2:45 pm

Nonstop1h 35m

$247

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 1/15

9:00 am-10:55 am

Nonstop1h 55m

Toronto Island

Mon 1/19

6:55 pm-8:30 pm

Nonstop1h 35m

$253

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 1/8

3:30 pm-7:08 pm

1 stop3h 38m

Toronto Island

Mon 1/12

2:05 pm-6:10 pm

1 stop4h 05m

$254

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 2/13

1:25 pm-3:22 pm

Nonstop1h 57m

Toronto Island

Thu 2/26

1:10 pm-2:45 pm

Nonstop1h 35m

$263

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 1/22

5:34 am-2:53 pm

1 stop9h 19m

Toronto Pearson Intl

Mon 1/26

10:15 am-1:03 am

2 stops38h 48m

$269

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 1/9

3:30 pm-5:03 pm

Nonstop1h 33m

Ottawa

Fri 1/16

4:40 pm-6:10 pm

Nonstop1h 30m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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 $116). Flying from Boston to Region of Ontario in January is currently the most expensive (average of $199). 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 December 12, 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 28% 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. Sunday at noon 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 December 12, 2025.

The most flights from BOS to CAON are scheduled on a Wednesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 December 12, 2025.
Read through reviews of airlines operating flights from Boston to Ontario, such as Porter Airlines, Delta, and Air Transat. 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
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
398 reviews
Porter Airlines
8.0
Very good
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Delta
7.9
Good
8,005 reviews
Porter Airlines
8.0
Very good
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.8
Good
480 reviews
Porter Airlines
8.0
Very good
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,095 reviews
Porter Airlines
8.0
Very good
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,516 reviews
Porter Airlines
8.0
Very good
398 reviews

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 1h 57m. Fly via Air Canada, Porter Airlines, 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 Air Canada, which is currently one of the cheapest options available, starting at $88. American Airlines flights start at $99 while deals on Porter Airlines start at $100 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 - Montreal Pierre Elliott Trudeau Intl and Boston Logan Intl - Toronto Island.

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

    Consider Brussels Airlines (92%), Jazz (69%) or ITA Airways (69%) 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 $902, our data shows the cheapest flight currently is $144. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $218 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 $116). Flying from Boston to Region of Ontario in January is currently the most expensive (average of $199). 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
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Hyannis to Pearson Intl flights
Hartford to Edmonton flights
Boston to Whitehorse flights
Boston to Prince George flights
Boston to Cranbrook flights
Boston to Thunder Bay flights
Albany to Toronto Island flights
Albany to Victoria flights
Boston to Windsor flights

Top 6 airlines flying from Boston to Ontario

Discover the top 6 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$126Average$336FlexibilityNo cancel feeOn-timeN/A
Porter AirlinesCheapest$126Average$423FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$210Average$563FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$229Average$357FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$243Average$373FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$360FlexibilityNo cancel feeOn-time71%

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