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Ontario

$105+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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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 July 29, 2025.

Round-trip from

$227
(Kiwi.com)

One-way from

$105
(Booking.com)

Popular in

November

Cheapest in

March

Average price

$301

Good round-trip deal

$257 or less

Good one-way deal

$112 or less
From Boston Logan Intl to Ontario
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One-way flight from Boston Logan Intl to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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 10/143:30 pmBOS - YTZ
1 stop3h 33mPorter Airlines
Tue 10/213:10 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 7/28$227
This Booking.com deal was found by Cheapflights users on 7/28. 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.
Sat 9/66:00 amBOS - YYZ
1 stop4h 39mAir Canada
Mon 9/88:55 pmYYZ - BOS
Nonstop1h 44mAir Canada
Deal found 7/28$230
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:55 pmBOS - YYZ
Nonstop1h 55mMultiple Airlines
Wed 8/279:10 amYYZ - BOS
2 stops9h 18mMultiple Airlines
Deal found 7/28$234
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Sat 9/610:20 amBOS - YTZ
1 stop4h 25mAir Canada
Tue 9/163:25 pmYTZ - BOS
1 stop6h 00mAir Canada
Deal found 7/29$247
This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:15 pmBOS - YTZ
Nonstop1h 49mMultiple Airlines
Sun 9/712:00 pmYTZ - BOS
1 stop5h 58mMultiple Airlines
Deal found 7/29$254
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:30 pmBOS - YYZ
1 stop11h 42mWestJet
Sun 9/286:30 amYYZ - BOS
1 stop11h 10mWestJet
Deal found 7/27$271
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:30 pmBOS - YOW
1 stop12h 15mWestJet
Mon 9/296:00 amYOW - BOS
1 stop11h 40mWestJet
Deal found 7/27$284
This SmartFares deal was found by Cheapflights users on 7/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:45 amBOS - YOW
1 stop4h 14mPorter Airlines
Fri 9/195:00 pmYOW - BOS
Nonstop1h 28mPorter Airlines
Deal found 7/26$290
This Booking.com deal was found by Cheapflights users on 7/29. 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 8/286:40 pmBOS - YUL
Nonstop1h 25mAir Canada
Sun 8/318:05 amYUL - BOS
Nonstop1h 25mAir Canada
Deal found 7/29$320
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 11/3010:20 amBOS - YUL
1 stop4h 55mPorter Airlines
Sat 12/61:55 pmYUL - BOS
1 stop4h 10mPorter Airlines
Deal found 7/27$323
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:05 amBOS - YUL
3 stops16h 10mMultiple Airlines
Tue 9/210:45 amYUL - BOS
1 stop6h 06mMultiple Airlines
Deal found 7/27$324
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Wed 8/203:30 pmBOS - YOW
Nonstop1h 28mMultiple Airlines
Sat 8/235:55 amYOW - BOS
1 stop9h 11mMultiple Airlines
Deal found 7/28$349

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 July 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

Tue 10/14

3:30 pm-7:03 pm

1 stop3h 33m

Toronto Island

Tue 10/21

3:10 pm-4:51 pm

Nonstop1h 41m

$227

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/6

6:00 am-10:39 am

1 stop4h 39m

Toronto Pearson Intl

Mon 9/8

8:55 pm-10:39 pm

Nonstop1h 44m

$230

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 8/21

6:55 pm-8:50 pm

Nonstop1h 55m

Toronto Pearson Intl

Wed 8/27

9:10 am-6:28 pm

2 stops9h 18m

$234

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 8/25

10:20 am-4:46 pm

1 stop6h 26m

Toronto Island

Tue 8/26

12:00 pm-6:28 pm

1 stop6h 28m

$262

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 9/19

6:30 pm-6:12 am

1 stop11h 42m

Toronto Pearson Intl

Sun 9/21

6:30 am-5:40 pm

1 stop11h 10m

$270

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 9/6

6:00 am-1:47 pm

1 stop7h 47m

Toronto Pearson Intl

Mon 9/8

5:15 pm-12:45 am

1 stop7h 30m

$275

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Thu 9/25

6:30 pm-6:45 am

1 stop12h 15m

Ottawa

Mon 9/29

6:00 am-5:40 pm

1 stop11h 40m

$284

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 9/19

8:45 am-12:59 pm

1 stop4h 14m

Ottawa

Fri 9/19

5:00 pm-6:28 pm

Nonstop1h 28m

$290

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 8/28

6:40 pm-8:05 pm

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 8/31

8:05 am-9:30 am

Nonstop1h 25m

$320

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Sun 11/30

10:20 am-3:15 pm

1 stop4h 55m

Montreal Pierre Elliott Trudeau Intl

Sat 12/6

1:55 pm-6:05 pm

1 stop4h 10m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 49 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 $243). Flying from Boston to Region of Ontario in August is currently the most expensive (average of $348). 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 July 29, 2025.

When flying from Boston to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 29, 2025.

The most flights from BOS to CAON are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 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 July 29, 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
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
317 reviews
Porter Airlines
8.0
Very good
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,979 reviews
Porter Airlines
8.0
Very good
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,896 reviews
Porter Airlines
8.0
Very good
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
317 reviews

Overall

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.7

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • 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 $105. Porter Airlines flights start at $107 while deals on WestJet start at $115 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 (75%), United Airlines (65%) or Air Canada (62%) 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 $1,641, our data shows the cheapest flight currently is $101. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $234 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 $243). Flying from Boston to Region of Ontario in August is currently the most expensive (average of $348). 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
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Boston to Happy Valley-Goose Bay flights

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$126Average$417FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$151Average$552FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$165Average$346FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$242Average$385FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$254Average$370FlexibilityNo cancel feeOn-time50%

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