Cheap flights from Boston to Toronto from C$ 155

The month of February is, on average, the cheapest month to fly to Toronto from Boston, with most prices found around C$ 127. The month of March is another great option to travel to Toronto, with average flight prices from Boston averaging around C$ 134.

According to our data, Sunday is the cheapest day to fly to Toronto from Boston. The lowest ticket price found for a Sunday departure recently was C$ 395. 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 Tuesday will generally be more expensive and average around C$ 644. 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$ 434 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around C$ 574. 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 Island 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$ 518 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$ 388 on momondo.

There are 3 cabin classes available to choose from on Boston to Toronto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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 129 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening 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.

25 flights are operational daily from Boston to Toronto as of June 2026. The most popular departure time for this route is 5:00p.m., with 35% of flights per day taking off at noon.

As of June 2026, 178 flights take off from Boston and land in Toronto each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.