Cheap flights from Boston to Toronto from C$ 147

The month of October is, on average, the cheapest month to fly to Toronto from Boston, with most prices found around C$ 371. The month of September is another great option to travel to Toronto, with average flight prices from Boston averaging around C$ 378.

According to our data, Monday is the cheapest day to fly to Toronto from Boston. The lowest ticket price found for a Monday departure recently was C$ 413. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Boston to Toronto on a Sunday will generally be more expensive and average around C$ 460. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Toronto from Boston in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 415 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around C$ 560. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Toronto from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 487 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Boston for as low as C$ 344 on momondo.

There are 3 cabin classes available to choose from on Boston Logan Intl to Toronto 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 10% on your flight if you consider stops on a Boston to Toronto flight.

As of February 2026, prices for Boston to Toronto flights are approximately 19% more expensive when compared to flights at the same time last year.

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

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Toronto from Boston according to our data. Air Canada is the first choice among our users, with 60% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 3 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% 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 132 minutes.

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

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

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

17 flights are operational daily from Boston to Toronto as of February 2026. The most popular departure time for this route is 6:00p.m., with 47% of flights per day taking off at noon.

As of February 2026, 119 flights take off from Boston and land in Toronto each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.