Cheap flights from the United States to Montreal from C$ 159

The cheapest month to fly to Montreal from United States is in January. Flight prices, which tend to average around C$ 504, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Montreal from United States during February instead. Flights to Montreal in February, while not as cheap as those in January, still average around C$ 530.

Our data shows that Sunday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 175. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from United States to Montreal for around C$ 274.

Our data shows that the cheapest United States to Montreal flights are usually those with departure times in the evening. Our users have found flights to Montreal in the evening for as low as C$ 181. Flights in the morning are often more expensive with an average ticket price of C$ 329.

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

You are more likely to see cheaper flights to Montreal from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 477 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from United States for as low as C$ 284 on momondo.

There are 4 cabin classes available to choose from on United States to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air Canada, Porter Airlines, and Delta are the most popular carriers operating from United States to Montreal

Air Canada, Porter Airlines and Air Transat are the top three most popular airlines that fly to Montreal from United States according to our data. Air Canada is the first choice among our users, with 59% of people opting to fly with this airline when travelling to Montreal. Keep in mind that there are 7 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between United States and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 138 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.

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

According to our data, Air Canada Rouge has had the least delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of September 2026, there are 88 flights per day flying from United States to Montreal. The most common time of day flights depart is 12:00p.m., with 39% of flights taking off at noon.

As of September 2026, there are 620 flights per week flying from United States to Montreal. The most common day of the week flights depart is Sat, with 19% of flights taking off on this day.