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$98+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
May 18 — May 251
Mon 5/18
Mon 5/25
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 April 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/78:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Wed 5/136:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/17$225
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Sat 5/167:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Wed 5/201:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/14$226
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/78:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Sun 5/109:00 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/15$227
This Vliegwinkel deal was found by Cheapflights users on 4/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Thu 6/41:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/13$229
This Gotogate deal was found by Cheapflights users on 4/14. 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.
Sat 5/305:50 am
BOS
-
YTZ
2 stops7h 27m
Air Canada
Sat 6/68:20 am
YTZ
-
BOS
2 stops6h 27m
Air Canada
Deal found 4/14$230
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/208:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Mon 5/259:00 am
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/14$231
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/167:10 am
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Sat 5/233:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/16$232
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 6/163:25 pm
BOS
-
YTZ
1 stop3h 33m
Porter Airlines
Thu 6/186:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/13$233
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/273:25 pm
BOS
-
YTZ
1 stop6h 23m
Porter Airlines
Fri 5/296:05 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/15$234
This FlightHub deal was found by Cheapflights users on 4/12. 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.
Sat 5/2310:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Sat 5/233:40 pm
YYZ
-
BOS
1 stop5h 15m
Porter Airlines
Deal found 4/12$235
This Trip.com deal was found by Cheapflights users on 4/13. 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 5/278:30 pm
BOS
-
YTZ
Nonstop1h 47m
Porter Airlines
Sat 5/301:00 pm
YTZ
-
BOS
Nonstop1h 41m
Porter Airlines
Deal found 4/13$235
This Vliegwinkel deal was found by Cheapflights users on 4/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:05 am
BOS
-
YYZ
Nonstop1h 55m
Porter Airlines
Thu 6/47:25 am
YYZ
-
BOS
Nonstop1h 40m
Porter Airlines
Deal found 4/13$236

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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$225
(Kiwi.com)

One-way from

$98
(Super.com)

Popular in

April

Cheapest in

October

Average price

$413

Good round-trip deal

$301 or less

Good one-way deal

$156 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. 8% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 18, 2026.
Use the filters below to find and compare flights from Boston to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 5/16

7:10 am-8:57 am

Nonstop1h 47m

Toronto Island

Mon 5/18

3:05 pm-4:46 pm

Nonstop1h 41m

$267

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 5/25

3:25 pm-6:58 pm

1 stop3h 33m

Toronto Island

Fri 6/5

3:05 pm-4:46 pm

Nonstop1h 41m

$285

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 5/28

3:25 pm-9:48 pm

1 stop6h 23m

Toronto Island

Wed 6/3

8:50 am-10:31 am

Nonstop1h 41m

$285

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 5/14

8:30 pm-10:17 pm

Nonstop1h 47m

Toronto Island

Mon 6/1

8:50 am-10:31 am

Nonstop1h 41m

$290

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 7/6

3:25 pm-9:48 pm

1 stop6h 23m

Toronto Island

Wed 7/8

1:00 pm-2:41 pm

Nonstop1h 41m

$296

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 7/7

3:25 pm-6:58 pm

1 stop3h 33m

Toronto Island

Wed 7/8

3:05 pm-4:46 pm

Nonstop1h 41m

$296

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 7/9

3:25 pm-6:58 pm

1 stop3h 33m

Toronto Island

Fri 7/10

1:00 pm-2:41 pm

Nonstop1h 41m

$296

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 5/7

6:00 am-11:49 am

1 stop5h 49m

Toronto Pearson Intl

Wed 5/13

7:00 am-12:46 pm

1 stop5h 46m

$297

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Thu 6/4

11:15 am-6:15 pm

1 stop7h 00m

Montreal Pierre Elliott Trudeau Intl

Fri 6/5

10:35 am-4:46 pm

1 stop6h 11m

$298

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 5/28

4:45 pm-5:34 am

2 stops12h 49m

Toronto Pearson Intl

Mon 6/1

7:25 am-9:05 am

Nonstop1h 40m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $96). Flying from Boston to Region of Ontario in February is currently the most expensive (average of $739). 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 April 18, 2026.

A simple way to save on the total cost of your ticket is to fly from Boston to Region of Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.

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 April 11, 2026.

Travelers seeking maximum savings on their Boston to Region of Ontario flight should consider departing on Saturday at noon 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 April 18, 2026.

The most flights from BOS to CAON are scheduled on a Friday (12 on average). You will have fewer flight options on Tuesday, 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 April 18, 2026.
Read through reviews of airlines operating flights from Boston to Ontario, such as Porter Airlines,Delta, andAir 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
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
435 reviews
Porter Airlines
8.0
Very good
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Delta
7.9
Good
8,410 reviews
Porter Airlines
8.0
Very good
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
536 reviews
Porter Airlines
8.0
Very good
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,603 reviews
Porter Airlines
8.0
Very good
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,934 reviews
Porter Airlines
8.0
Very good
435 reviews

Overall

8.0

Entertainment

7.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 47m. Fly via Porter Airlines, United Airlines, or Delta 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 $91. Porter Airlines flights start at $95 while deals on Air Transat start at $110 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 (91%), Jazz (71%) or Air Canada (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 $1,195, our data shows the cheapest flight currently is $102. 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, March is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $96). Flying from Boston to Region of Ontario in February is currently the most expensive (average of $739). 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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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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$106Average$495FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$125Average$369FlexibilityNo cancel feeOn-time52%
DeltaCheapest$128Average$190FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$145Average$359FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$279Average$382FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$402FlexibilityNo cancel feeOn-time71%

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