Cheap flights from Montreal to Boston from C$ 188

The cheapest month to fly to Boston from Montreal is in May. Flight prices, which tend to average around C$ 362, are often lower during this time because this is during the off-season. If you are unable to visit Boston during the month of May, then departing from Montreal during the month January is also very affordable. Most momondo users find prices during this month for around C$ 423.

On average, the least expensive day to fly to Boston from Montreal is on a Thursday. momondo users have found tickets for Thursday departures for as low as C$ 632. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Montreal to Boston on a Monday will generally be more expensive and average around C$ 1,675. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Boston from Montreal in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 605 when looking at flights departing in the morning. Flights in the afternoon are often more expensive with an average ticket price of C$ 1,272.

Fly from Montreal Pierre Elliott Trudeau Intl to Boston Logan Intl for the best Montreal - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around C$ 512 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Montreal for as low as C$ 380 on momondo.

There are 3 cabin classes available to choose from on Montreal to Boston Logan Intl 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 4% on your flight if you consider stops on a Montreal to Boston flight.

As of March 2026, prices for Montreal to Boston flights are approximately 27% more expensive when compared to flights at the same time last year.

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

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Boston from Montreal according to our data. Air Canada is the first choice among our users, with 76% of people opting to fly with this airline when travelling to Boston. Keep in mind that there are 3 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Montreal and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 122 minutes.

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

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

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 25% of their flights experiencing any sort of delay.

As of March 2026, 10 flights take off from Montreal and land in Boston each day. The most common flight departure time for this route is 1:00p.m., with 57% of daily flights taking off in the afternoon.

As of March 2026, 71 flights take off from Montreal and land in Boston each week. The most common flight departure day for this route is Thu, with 15% of weekly flights taking off on this day.