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$128+ Cheap flights from Ontario to Boston (BOS)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOS
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Cheap flight deals from Ontario to Boston

Cheapest flights from Ontario to Boston
Explore the most affordable flight options available from Ontario to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.

This Booking.com deal was found by Cheapflights users on 3/22. 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.
Fri 7/246:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Mon 7/273:25 pm
BOS
-
YTZ
1 stop3h 33m
Porter Airlines
Deal found 3/22$214
This Jettzy deal was found by Cheapflights users on 3/20. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:40 pm
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Mon 6/810:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 3/20$214
This Justfly.com deal was found by Cheapflights users on 3/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Sun 7/2611:15 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 3/19$215
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/233:55 pm
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Tue 7/2810:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 3/22$215
This FlightHub deal was found by Cheapflights users on 3/22. 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.
Wed 6/248:50 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Mon 6/293:25 pm
BOS
-
YTZ
1 stop6h 23m
Porter Airlines
Deal found 3/22$216
This FlightHub deal was found by Cheapflights users on 3/22. 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.
Tue 7/77:25 am
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Fri 7/1710:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Deal found 3/22$216
This Trip.com deal was found by Cheapflights users on 3/18. 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 4/98:00 am
YTZ
-
BOS
Nonstop1h 35m
Porter Airlines
Sun 4/127:00 am
BOS
-
YTZ
Nonstop1h 54m
Porter Airlines
Deal found 3/18$217
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Mon 5/410:30 am
YYZ
-
BOS
1 stop4h 17m
Air Canada
Fri 5/85:10 am
BOS
-
YYZ
Nonstop1h 53m
Air Canada
Deal found 3/20$217
This FlightHub deal was found by Cheapflights users on 3/19. 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.
Wed 6/247:25 am
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Mon 6/293:25 pm
BOS
-
YYZ
1 stop4h 19m
Porter Airlines
Deal found 3/19$218
This SmartFares deal was found by Cheapflights users on 3/19. 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.
Thu 4/308:00 am
YTZ
-
BOS
Nonstop1h 35m
Air Transat
Sun 5/37:10 am
BOS
-
YTZ
Nonstop1h 47m
Air Transat
Deal found 3/19$219
This FlightHub deal was found by Cheapflights users on 3/23. 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.
Thu 6/253:40 pm
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Mon 6/293:25 pm
BOS
-
YYZ
1 stop4h 19m
Porter Airlines
Deal found 3/23$219
This Mytrip deal was found by Cheapflights users on 3/23. 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.
Mon 6/158:50 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Wed 6/178:25 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Deal found 3/23$220

Find flight deals from Ontario to Boston

Keep the following information in mind while searching for Ontario to Boston flight deals. Data was last updated March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$214
(Booking.com)

One-way from

$128
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$303

Good round-trip deal

$238 or less

Good one-way deal

$154 or less
Provider with most accurate pricing for Toronto (YTO)-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Boston Logan Intl flights.
Search Deals
From Ontario to Boston Logan Intl
Search Deals
One-way flight from Ontario to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Ontario to Boston Logan Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Boston 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 March 23, 2026.
Use the filters below to find and compare flights from Ontario to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Wed 7/15

8:00 am-4:00 pm

2 stops8h 00m

Boston Logan Intl

Sun 7/19

4:45 pm-10:20 pm

1 stop5h 35m

$245

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Thu 6/4

3:40 pm-8:55 pm

1 stop5h 15m

Boston Logan Intl

Sun 6/7

6:35 pm-8:30 pm

Nonstop1h 55m

$251

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Tue 6/23

8:50 am-10:31 am

Nonstop1h 41m

Boston Logan Intl

Tue 6/23

5:30 pm-7:17 pm

Nonstop1h 47m

$256

TorontoBoston

YTZ - BOS

YTZBOS

Toronto Island

Sat 5/23

3:05 pm-4:46 pm

Nonstop1h 41m

Boston Logan Intl

Wed 5/27

3:25 pm-9:48 pm

1 stop6h 23m

$257

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Fri 4/10

12:45 pm-7:06 pm

1 stop6h 21m

Boston Logan Intl

Mon 4/13

5:25 pm-10:23 pm

1 stop4h 58m

$264

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Thu 4/9

7:43 pm-11:59 pm

1 stop4h 16m

Boston Logan Intl

Sun 4/12

7:05 am-11:43 am

1 stop4h 38m

$264

TorontoBoston

YYZ - BOS

YYZBOS

Toronto Pearson Intl

Fri 4/10

9:35 am-2:42 pm

1 stop5h 07m

Boston Logan Intl

Tue 4/14

5:45 am-10:04 am

1 stop4h 19m

$265

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Mon 5/4

10:35 am-4:46 pm

1 stop6h 11m

Boston Logan Intl

Mon 5/11

3:40 pm-5:13 pm

Nonstop1h 33m

$266

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Thu 6/4

6:30 am-10:31 am

1 stop4h 01m

Boston Logan Intl

Sun 6/7

11:15 am-6:15 pm

1 stop7h 00m

$269

MontrealBoston

YUL - BOS

YULBOS

Montreal Pierre Elliott Trudeau Intl

Fri 5/29

10:35 am-2:41 pm

1 stop4h 06m

Boston Logan Intl

Tue 6/2

7:10 am-12:10 pm

1 stop5h 00m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Ontario 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 Ontario to Boston

What is the cheapest month to book a flight from Region of Ontario to Boston?

Currently, March is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of $147). Flying from Region of Ontario to Boston in August is currently the most expensive (average of $204). 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 ON to BOS?

Find hourly flight availability from Ontario to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 23, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 53% on flights from Region of Ontario to Boston by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Boston. Price data was last updated on August 31, 2025.

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

Weekly flight availability from Region of Ontario to Boston

Explore weekly flight availability from Ontario to Boston. 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 March 23, 2026.

The most flights from CAON to BOS are scheduled on a Thursday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

Related info for your journey

Find useful and relevant information for your journey from Ontario to Boston. 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 into for flights to Boston from Ontario?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Boston from Ontario.

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

    There are many flights that can get you from Region of Ontario to Boston in 3h 45m. Fly via Porter Airlines, United Airlines, or Air Canada to get the fastest option. Region of Ontario and Boston are separated by a distance of 309 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Region of Ontario to Boston one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at $117. Air Canada flights start at $126 while deals on Air Transat start at $140 one-way.

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

    While some choose either Toronto Island - Boston Logan Intl or Montreal Pierre Elliott Trudeau Intl - Boston Logan Intl, Toronto Pearson Intl - Boston Logan Intl is the most popular route from Region of Ontario to Boston.

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

    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 Region of Ontario to Boston on time: Air Canada (59%), ITA Airways (50%), Jazz (45%).

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

    While on average a flight from Region of Ontario to Boston is generally $1,372, our data shows the cheapest flight currently is $139. When looking at the most popular route, (Toronto Pearson Intl - Boston Logan Intl), you can expect to pay $199 for that flight.

  • Can I find deals for flights from Ontario to Boston that include hotel bookings?

    Yes. In addition to deals on Ontario to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Boston.

  • Can I find deals for business class flights from Ontario to Boston?

    Yes. Cheapflights offers flight deals from Ontario to Boston 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 Region of Ontario to Boston?

    Currently, March is the cheapest month in which you can book a flight from Region of Ontario to Boston (average of $147). Flying from Region of Ontario to Boston in August is currently the most expensive (average of $204). 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

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Seekonk
Brockton
Seabrook
Cranston
Chelsea
Smithfield
Lincoln
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Ontario to Boston

Discover the top 3 airlines that operate flights from Ontario to Boston. 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$180Average$298FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$193Average$319FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$213Average$418FlexibilityNo cancel feeOn-time69%

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