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Cheap flights from Boston to Ontario from C$ 140

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 16/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
30 Mar — 6 Apr1
1 adult

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 25 March 2025.

Round-trip from

C$ 278

One-way from

C$ 140

Popular in

November

Cheapest in

September

Average price

C$ 443

Good round-trip deal

C$ 330 or less

Good one-way deal

C$ 174 or less
Porter Airlines
  • Porter Airlines
  • 14/4-15/4
  • Nonstop
  • 3h 34m total
  • Boston to Ontario
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16/4
  • 16/4
  • 1 total stop
  • 25h 37m total
  • Boston to Ontario
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Highest demand for flights based on searches. 7% potential increase in price (C$ 57 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
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Average for round-trip flights in March 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 25 March 2025.

Mon 14/410:20 a.m.BOS - YTZ
Nonstop1h 59mPorter Airlines
Tue 15/48:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 24/3C$ 278
Thu 10/410:20 a.m.BOS - YTZ
Nonstop1h 59mMultiple Airlines
Sun 13/410:25 a.m.YTZ - BOS
1 stop6h 27mMultiple Airlines
Deal found 24/3C$ 284
Fri 11/49:39 p.m.BOS - YYZ
1 stop16h 16mMultiple Airlines
Mon 14/47:10 a.m.YYZ - BOS
1 stop29h 26mMultiple Airlines
Deal found 24/3C$ 291
Thu 10/46:10 a.m.BOS - YYZ
Nonstop2h 01mAir Canada
Sun 13/48:00 a.m.YYZ - BOS
Nonstop1h 41mAir Canada
Deal found 24/3C$ 301
Wed 30/47:05 a.m.BOS - YUL
1 stop4h 10mMultiple Airlines
Wed 30/41:30 p.m.YUL - BOS
Nonstop1h 27mMultiple Airlines
Deal found 23/3C$ 307
Wed 30/46:35 a.m.BOS - YUL
Nonstop1h 25mAir Canada
Wed 30/43:25 p.m.YUL - BOS
Nonstop1h 27mAir Canada
Deal found 23/3C$ 321
Mon 28/47:05 a.m.BOS - YUL
1 stop4h 10mPorter Airlines
Tue 29/44:00 p.m.YUL - BOS
1 stop4h 20mPorter Airlines
Deal found 23/3C$ 342
Thu 8/56:00 a.m.BOS - YTZ
2 stops5h 32mAir Canada
Thu 15/58:25 a.m.YTZ - BOS
1 stop6h 07mAir Canada
Deal found 24/3C$ 345
Wed 7/53:50 p.m.BOS - YOW
Nonstop1h 28mMultiple Airlines
Wed 14/52:30 p.m.YOW - BOS
1 stop3h 39mMultiple Airlines
Deal found 23/3C$ 360
Sat 19/411:25 a.m.BOS - YOW
1 stop4h 04mPorter Airlines
Sun 20/47:00 a.m.YOW - BOS
1 stop3h 40mPorter Airlines
Deal found 23/3C$ 362
Thu 10/46:10 a.m.BOS - YYZ
Nonstop2h 01mUnited Airlines
Sun 13/410:30 a.m.YYZ - BOS
Nonstop1h 41mUnited Airlines
Deal found 24/3C$ 372
Fri 9/57:15 a.m.BOS - YTZ
Nonstop1h 49mAir Transat
Fri 9/57:50 p.m.YTZ - BOS
Nonstop1h 41mAir Transat
Deal found 24/3C$ 408

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 629,999 searches. Data last updated 25 March 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

Mon 14/4

10:20 a.m.-12:19 p.m.

Nonstop1h 59m

Toronto Island

Tue 15/4

8:00 a.m.-9:35 a.m.

Nonstop1h 35m

C$ 278

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 10/4

10:20 a.m.-12:19 p.m.

Nonstop1h 59m

Toronto Island

Sun 13/4

10:25 a.m.-4:52 p.m.

1 stop6h 27m

C$ 284

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 11/4

9:39 p.m.-1:55 p.m.

1 stop16h 16m

Toronto Pearson Intl

Mon 14/4

7:10 a.m.-12:36 p.m.

1 stop29h 26m

C$ 291

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 10/4

6:10 a.m.-8:11 a.m.

Nonstop2h 01m

Toronto Pearson Intl

Sun 13/4

8:00 a.m.-9:41 a.m.

Nonstop1h 41m

C$ 301

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 30/4

7:05 a.m.-11:15 a.m.

1 stop4h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 30/4

1:30 p.m.-2:57 p.m.

Nonstop1h 27m

C$ 307

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Wed 30/4

6:35 a.m.-8:00 a.m.

Nonstop1h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 30/4

3:25 p.m.-4:52 p.m.

Nonstop1h 27m

C$ 321

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 11/4

7:05 a.m.-9:04 a.m.

Nonstop1h 59m

Toronto Island

Mon 14/4

6:40 p.m.-8:20 p.m.

Nonstop1h 40m

C$ 340

BostonMontreal

BOS - YUL

BOSYUL

Boston Logan Intl

Mon 28/4

7:05 a.m.-11:15 a.m.

1 stop4h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 29/4

4:00 p.m.-8:20 p.m.

1 stop4h 20m

C$ 342

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 8/5

10:20 a.m.-2:50 p.m.

1 stop4h 30m

Toronto Island

Thu 15/5

10:25 a.m.-2:32 p.m.

1 stop4h 07m

C$ 354

BostonOttawa

BOS - YOW

BOSYOW

Boston Logan Intl

Fri 11/4

5:29 p.m.-5:42 p.m.

1 stop24h 13m

Ottawa

Sun 13/4

5:00 p.m.-6:35 p.m.

Nonstop1h 35m

C$ 370

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/3

Showing 1-10 of 55 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 C$ 167). Flying from Boston to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 25 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Region of Ontario as you normally would.

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 25 March 2025.

The most flights from BOS to CAON are scheduled on a Monday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 25 March 2025.
Peruse reviews from past customers who have flown with Delta, Porter Airlines and Air Transat from Boston to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,890 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding 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?

    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.

  • 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 Transat, which is currently one of the cheapest options available, starting at C$ 149. Air Canada flights start at C$ 150 while deals on United Airlines start at C$ 152 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 - Toronto Island or Boston Logan Intl - Montreal Pierre Elliott Trudeau Intl.

  • 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: Air Canada (69%), Jazz (68%), United Airlines (62%).

  • 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$ 349, our data shows the cheapest flight currently is C$ 144. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 292 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 C$ 167). Flying from Boston to Region of Ontario in July is currently the most expensive (average of C$ 258). 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
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Boston to Windsor flights
Boston to Thunder Bay flights
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Provincetown to Pierre Elliott Trudeau Intl flights
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Boston to Gander flights

Top 3 airlines flying from Boston to Ontario

Discover the top 3 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 629,999 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 267AverageC$ 497FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 273AverageC$ 541FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 356AverageC$ 527FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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