Cheap flights from Washington, D.C. to Montreal from C$ 218

The cheapest month to fly to Montreal from Washington, D.C. is in January. Flight prices, which tend to average around C$ 524, 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 Washington, D.C. during March instead. Flights to Montreal in March, while not as cheap as those in January, still average around C$ 540.

Our data shows that Thursday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 535. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Montreal for around C$ 1,009.

Our data shows that the cheapest Washington, D.C. to Montreal flights are usually those with departure times in the afternoon. Our users have found flights to Montreal in the afternoon for as low as C$ 618. Flights at noon are often more expensive with an average ticket price of C$ 839.

Fly from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl for the best Washington, D.C. - Montreal flight prices

You are more likely to see cheaper flights to Montreal from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 618 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Washington, D.C. for as low as C$ 260 on momondo.

There are 2 cabin classes available to choose from on Washington, D.C. to Montreal 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 36% on your flight if you consider stops on a Washington, D.C. to Montreal flight.

As of November 2026, prices for Washington, D.C. to Montreal flights are approximately 14% more expensive when compared to flights at the same time last year.

As of November 2026, there are 14 flights per day flying from Washington, D.C. to Montreal. The most common time of day flights depart is 1:00p.m., with 73% of flights taking off in the afternoon.

As of November 2026, 104 flights take off from Washington, D.C. and land in Montreal each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.