Cheap flights from Boston to Montreal from C$ 152

The cheapest month to fly to Montreal from Boston is in May. Flight prices, which tend to average around C$ 139, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Montreal from Boston during March instead. Flights to Montreal in March, while not as cheap as those in May, still average around C$ 165.

Our data shows that Tuesday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 506. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Montreal for around C$ 923.

Our data shows that the cheapest Boston to Montreal flights are usually those with departure times in the morning. Our users have found flights to Montreal in the morning for as low as C$ 605. Flights in the afternoon are often more expensive with an average ticket price of C$ 616.

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

You are more likely to see cheaper flights to Montreal from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 569 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Boston for as low as C$ 363 on momondo.

You could potentially save up to 7% on your flight if you consider stops on a Boston to Montreal flight.

As of April 2026, prices for Boston to Montreal flights are approximately 6% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Boston Logan Intl to Montreal

Air Canada, Porter Airlines and American Airlines are the top three most popular airlines that fly to Montreal from Boston according to our data. Air Canada is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Montreal. Keep in mind that there are 3 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

5 flights are operational daily from Boston to Montreal as of April 2026. The most popular departure time for this route is 6:00p.m., with 30% of flights per day taking off in the evening.

As of April 2026, 35 flights take off from Boston and land in Montreal each week. The most common flight departure day for this route is Mon, with 29% of weekly flights taking off on this day.