Cheap flights from Toronto to Boston from $140

In general, September is the cheapest month to fly from Toronto to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $263. If you aren’t able to travel during the month of September, then book flights to Boston from Toronto during August instead. Flights to Boston in August, while not as cheap as those in September, still average around $264.

The cheapest day to depart from Toronto to Boston is on a Thursday when prices can be found for as low as $309. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Wednesday is $1,140.

According to our data, the cheapest time of day to fly to Boston is in the morning. momondo users have found flights departing from Toronto to Boston in the morning for as low as $288. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $1,232 per ticket.

Fly from Toronto Island to Boston Logan Intl for the best Toronto - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Toronto when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $319 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Toronto for as low as $256 on momondo.

There are 4 cabin classes available to choose from on Toronto to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 9% on your flight if you consider stops on a Toronto to Boston flight.

As of November 2026, prices for Toronto to Boston flights are approximately 21% cheaper when compared to flights at the same time last year.

Porter Airlines, United Airlines, and Delta are the most popular carriers operating from Toronto to Boston Logan Intl

Air Canada, Porter Airlines and Air Transat are the top three most popular airlines that fly to Boston from Toronto according to our data. Air Canada is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 5 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Toronto and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 119 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Porter Airlines have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

The number of flights available between Toronto and Boston is 23 per day as of November 2026. The most frequent departure time is 7:00AM, with 50% of daily flights leaving in the afternoon.

As of November 2026, 165 flights take off from Toronto and land in Boston each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.