Cheap flights from Boston to Toronto from $109

The cheapest month to fly to Toronto Pearson Intl Airport from Boston is in March. Flight prices, which tend to average around $319, are often lower during this time because this is during the off-season. If you don’t want to visit Toronto Pearson Intl Airport in March, then you should wait until May to fly from Boston, when ticket prices are also cheap, with an average price of $322.

The cheapest day to depart from Boston to Toronto Pearson Intl Airport is on a Friday when prices can be found for as low as $497. The most expensive day to fly to Toronto Pearson Intl Airport is Monday, with ticket prices averaging around $625.

Flying to Toronto Pearson Intl Airport from Boston at noon is the least expensive time of day to depart. momondo users have found prices as low as $526 when looking at flights departing at noon. Flights in the evening are often more expensive with an average ticket price of $608.

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

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Pearson Intl Airport from Boston for as low as $266 on momondo.

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

No. A direct flight is the cheapest option for a flight between Boston to Toronto Pearson Intl Airport.

As of February 2026, prices for Boston to Toronto Pearson Intl Airport flights are approximately 31% more expensive when compared to flights at the same time last year.

Air Canada and Porter Airlines are the most popular carriers operating from Boston Logan Intl to Toronto Pearson Intl

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Toronto Pearson Intl Airport from Boston according to our data. Air Canada is the first choice among our users, with 78% of people opting to fly with this airline when traveling to Toronto Pearson Intl Airport. Keep in mind that there are 5 different airlines that fly to Toronto Pearson Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Boston and Toronto have experienced a delay on any given week. The average delay length over the past 12 months has been 143 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.

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

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with about 23% of their flights experiencing any sort of delay.

As of February 2026, there are 10 flights per day flying from Boston to Toronto Pearson Intl Airport. The most common time of day flights depart is 6:00AM, with 43% of flights taking off at noon.

74 flights are operational weekly from Boston to Toronto Pearson Intl Airport as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.