What are the cheapest airlines flying from Boston to Toronto round-trip?

Porter Airlines, at $228, was found to be the cheapest airline from Boston to Toronto. An alternate airline flying to your destination would be Air Canada. Porter Airlines is priced at 29% lower than the current average price of a flight leaving 3 months from now.

How far ahead should I book a flight from Boston to Toronto?

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Toronto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to Toronto?

Currently, January is the cheapest month in which you can book a flight from Boston to Toronto (average of $243). Flying from Boston to Toronto 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 day to fly from Boston to Toronto?

Travelers seeking maximum savings on their Boston to Toronto flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Toronto

The most flights from BOS to YTO are scheduled on a Friday (22 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (16 on average).

In terms of precipitation, rainfall in Toronto ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What are the cheapest flights from Boston to Toronto?

While on average a flight from Boston to Toronto is generally $1,351, our data shows the cheapest flight currently is $100. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $244 for that flight.

What are the most reliable airlines from Boston to Toronto?

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 Toronto on time: ITA Airways (92%), Brussels Airlines (74%), United Airlines (63%).

What are the most popular airlines that fly from Boston to Toronto?

Consider American Airlines, Air Canada or Porter Airlines when booking your flight. These represent the most popular airlines when flying from Boston to Toronto.

What is the cheapest day to fly round-trip from Boston to Toronto?

Users have found that flying from Boston to Toronto on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Boston to Toronto?

To save up to 98% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Boston to Toronto from $339 1-2 weeks out and tickets from $628 for flights departing within the next 72 hours.

What is the cheapest month to fly from Boston to Toronto?

The best pricing can be found in the month of March. Prices to Toronto from Boston average $322. You can even find prices in March for less than $322, as users have found deals to Toronto from as low as $189. The month of November appears to be one of the more expensive times to travel to Toronto from Boston. Flying in the targeted month can save you up to 27%.

What is the cheapest time of day to fly from BOS to YTO?

A simple way to save on the total cost of your ticket is to fly from Boston to Toronto at noon. 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 airport do you fly from for flights from Boston to Toronto?

Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Toronto. On average, Logan Intl has 19 outbound flights to Toronto per day from 5 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

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

How can I find direct flights from Boston to Toronto?

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

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

Yes. Cheapflights offers flight deals from Boston to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$104+ Flights from Boston to Toronto

Round-trip from	$228 (Trip.com)
One-way from	$104 (Air Canada)
Popular in	November
Cheapest in	March
Average price	$304
Good round-trip deal	$258 or less
Good one-way deal	$119 or less

Porter offers free snacks and drinks with no middle seats, enhancing short-haul comfort.

PorterReserve includes expedited security and early boarding, ideal for business travelers.

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	Cheapest$127	Average$292	FlexibilityNo cancel fee	On-time52%
Air Canada	Cheapest$154	Average$363	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$165	Average$338	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$244	Average$384	FlexibilityNo cancel fee	On-time69%
Air Transat	Cheapest$254	Average$363	FlexibilityNo cancel fee	On-time50%

$104+ Cheap flights from Boston (BOS) to Toronto (YTO)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Toronto with Cheapflights

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Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in March or September, booked 78 days in advance, depart on a Thursday or Friday and return on a Thursday

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Cheapest flights from Boston to TorontoExplore the most affordable flight options available from Boston to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.

Explore the most affordable flight options available from Boston to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.

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The best insider tips for Boston to Toronto flights

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Best time to book a flight from Boston to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to Toronto

How far ahead should I book a flight from Boston to Toronto?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Toronto. Price data was last updated on August 1, 2025.

What is the cheapest month to book a flight from Boston to Toronto?

What is the cheapest time of day to fly from BOS to YTO?

Find hourly flight availability from Boston to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 5, 2025.

What is the cheapest day to fly from Boston to Toronto?

Use this chart to determine the cheapest time to fly round-trip from Boston to Toronto. Price data was last updated on September 8, 2024.

Weekly flight availability from Boston to Toronto

Explore weekly flight availability from Boston to Toronto. 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 August 5, 2025.

Reviews of airlines servicing Toronto

Peruse reviews from past customers who have flown with Porter Airlines, Delta, and Air Transat from Boston to Toronto 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.

Related info for your journey

Find useful and relevant information for your journey from Boston to Toronto. 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 Toronto?

What are the cheapest airlines flying from Boston to Toronto round-trip?

What are the most reliable airlines from Boston to Toronto?

What are the cheapest flights from Boston to Toronto?

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

How can I find direct flights from Boston to Toronto?

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

What is the cheapest month to book a flight from Boston to Toronto?

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Alternative routes for Boston to Toronto

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Cheapest flights from Boston to Toronto
Explore the most affordable flight options available from Boston to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2025.