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Cheap flights from Boston to Ontario from C$ 129

BOS — YYZ
30 Sep — 7 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Ontario

Fri 18/95:50 a.m. -
1 stop4h 15m
Sun 20/98:50 a.m. -
Nonstop1h 40m
Deal found 27/8C$ 277
Mon 28/97:00 a.m. -
Nonstop1h 47m
Mon 28/911:55 a.m. -
1 stop3h 55m
Deal found 27/8C$ 284
Fri 18/96:00 a.m. -
Nonstop1h 56m
Sun 20/97:25 a.m. -
Nonstop1h 40m
Deal found 27/8C$ 286
Thu 24/96:00 a.m. -
Nonstop1h 56m
Sun 27/97:25 a.m. -
Nonstop1h 40m
Deal found 31/8C$ 289
Wed 16/96:10 p.m. -
Nonstop1h 47m
Wed 23/93:45 p.m. -
Nonstop1h 40m
Deal found 26/8C$ 291
Sat 19/96:10 p.m. -
Nonstop1h 47m
Sun 20/98:50 a.m. -
Nonstop1h 40m
Deal found 27/8C$ 292
Fri 25/92:20 p.m. -
1 stop4h 35m
Tue 29/93:45 p.m. -
Nonstop1h 40m
Deal found 31/8C$ 295
Thu 17/911:10 a.m. -
Nonstop1h 47m
Sat 26/98:50 a.m. -
Nonstop1h 40m
Deal found 26/8C$ 296
Wed 16/94:30 p.m. -
Nonstop1h 45m
Mon 21/97:15 p.m. -
Nonstop1h 40m
Deal found 26/8C$ 298
Sat 19/97:40 p.m. -
Nonstop1h 59m
Sun 20/911:55 a.m. -
1 stop3h 55m
Deal found 29/8C$ 300
Wed 23/97:30 p.m. -
Nonstop1h 55m
Sun 27/97:25 a.m. -
Nonstop1h 40m
Deal found 31/8C$ 302
Sat 19/97:00 a.m. -
Nonstop1h 47m
Wed 23/97:15 p.m. -
Nonstop1h 40m
Deal found 26/8C$ 302

Find flight deals from Boston to Ontario

Round-trip from

C$ 277

One-way from

C$ 129

Popular in

April

Cheapest in

July

Average price

C$ 423

Good round-trip deal

C$ 343 or less

Good one-way deal

C$ 136 or less
Porter Airlines
  • Porter Airlines
  • 18/9-20/9
  • 1 total stop
  • 5h 55m total
  • Boston to Ontario
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Porter Airlines
  • Porter Airlines
  • 22/9
  • Nonstop
  • 1h 55m total
  • Boston to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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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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Cheapflights Fare Finder

 
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

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Sat 26/9

6:00 a.m.-1:47 p.m.

1 stop7h 47m

Toronto Pearson Intl

Sat 26/9

4:15 p.m.-6:04 p.m.

Nonstop1h 49m

C$ 348

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Thu 24/9

4:30 p.m.-6:15 p.m.

Nonstop1h 45m

Toronto Island

Fri 25/9

3:45 p.m.-5:25 p.m.

Nonstop1h 40m

C$ 356

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Fri 25/9

6:00 a.m.-1:47 p.m.

1 stop7h 47m

Toronto Pearson Intl

Tue 29/9

3:00 p.m.-10:45 p.m.

1 stop7h 45m

C$ 403

BostonMontreal

BOS Boston Logan Intl - YUL Montreal Pierre Elliott Trudeau Intl

BOSYUL

Boston Logan Intl

Thu 24/9

5:50 a.m.-7:15 a.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

7:30 a.m.-2:02 p.m.

1 stop6h 32m

C$ 403

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Thu 24/9

2:20 p.m.-10:04 p.m.

1 stop7h 44m

Toronto Pearson Intl

Fri 25/9

7:25 a.m.-9:05 a.m.

Nonstop1h 40m

C$ 450

BostonOttawa

BOS Boston Logan Intl - YOW Ottawa

BOSYOW

Boston Logan Intl

Thu 1/10

6:30 p.m.-5:35 a.m.

1 stop11h 05m

Ottawa

Sat 3/10

2:30 p.m.-3:57 p.m.

Nonstop1h 27m

C$ 453

BostonMontreal

BOS Boston Logan Intl - YUL Montreal Pierre Elliott Trudeau Intl

BOSYUL

Boston Logan Intl

Fri 18/9

8:31 p.m.-10:40 a.m.

1 stop14h 09m

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

9:10 a.m.-4:05 p.m.

1 stop6h 55m

C$ 477

BostonThunder Bay

BOS Boston Logan Intl - YQT Thunder Bay

BOSYQT

Boston Logan Intl

Wed 4/11

4:35 p.m.-10:19 p.m.

1 stop5h 44m

Thunder Bay

Tue 10/11

7:05 a.m.-12:32 p.m.

1 stop5h 27m

C$ 484

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Sat 12/9

11:10 a.m.-12:57 p.m.

Nonstop1h 47m

Toronto Island

Fri 25/9

3:45 p.m.-5:25 p.m.

Nonstop1h 40m

C$ 498

BostonThunder Bay

BOS Boston Logan Intl - YQT Thunder Bay

BOSYQT

Boston Logan Intl

Wed 4/11

5:30 a.m.-4:05 p.m.

2 stops10h 35m

Thunder Bay

Tue 10/11

11:20 a.m.-5:58 p.m.

1 stop6h 38m

C$ 500

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/8

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

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, September is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 395). Flying from Boston to Region of Ontario in April is currently the most expensive (average of C$ 535). 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?

When flying from Boston to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 35% versus a flight at noon.

Weekly flight availability from Boston to Region of Ontario

The most flights from BOS to CAON are scheduled on a Saturday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Boston to Region of Ontario?

Airfare is below average for this route at the moment.
Boston to Region of Ontario flights typically cost between C$ 318 and C$ 520 in September.
The cheapest round-trip price found within the last 5 days was C$ 286 on Multiple Airlines (18 Sep-20 Sep).

How far ahead should I book a flight from Boston to Region of Ontario?

The price you pay for your flight from Boston to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Travelers seeking maximum savings on their Boston to Region of Ontario flight should consider departing on Sunday afternoons 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.

Reviews of airlines servicing Ontario

Check out reviews from past customers who have flown with Porter Airlines and Air Canada from Boston to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
458 reviews
Check prices

Entertainment

6.9

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
458 reviews
Porter Airlines
8.0
Very good
458 reviews
Check prices

Entertainment

6.9

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,559 reviews
Porter Airlines
8.0
Very good
458 reviews
Check prices

Entertainment

6.9

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Food

7.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

  • What airport do you fly from for flights from Boston to Ontario?

    For a flight from Boston to Ontario, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 4.2 km from the centre of the city.

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

    For as low as C$ 403, Porter Airlines can have you in Region of Ontario from Boston in 1h 25m. Boston and Region of Ontario are separated by a distance of 407 km. When browsing for deals, the options you’ll see will be for both direct 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 C$ 126. Air Canada flights start at C$ 128 while deals on Air Transat start at C$ 162 one-way.

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

    The most popular route from Boston to Region of Ontario is Boston Logan Intl - Toronto Pearson Intl. You may also consider Boston Logan Intl - Montreal Pierre Elliott Trudeau Intl or Boston Logan Intl - Toronto Island.

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

    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 Boston to Region of Ontario on time: Jazz (89%), Brussels Airlines (74%), Air Canada (73%).

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

    While on average a flight from Boston to Region of Ontario is generally C$ 398, our data shows the cheapest flight currently is C$ 128. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 304 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, September is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of C$ 395). Flying from Boston to Region of Ontario in April is currently the most expensive (average of C$ 535). 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Boston to Ontario

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 171AverageC$ 519FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 274AverageC$ 430FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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How does Cheapflights help users find flights from Boston to Ontario?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Boston to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Boston to Ontario with no change fees.

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Of course! You can now track prices for flights from Boston to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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