Cheap flights from Washington, D.C. to Montreal from C$ 209

The cheapest month to fly to Montreal from Washington, D.C. is in February. Flight prices, which tend to average around C$ 511, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Montreal from Washington, D.C. during January instead. Flights to Montreal in January, while not as cheap as those in February, still average around C$ 511.

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$ 532. 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$ 1,003.

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$ 615. Flights at noon are often more expensive with an average ticket price of C$ 860.

Fly from Washington, D.C. Reagan-National 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$ 596 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$ 258 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 9% on your flight if you consider stops on a Washington, D.C. to Montreal flight.

As of September 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 September 2026, there are 18 flights per day flying from Washington, D.C. to Montreal. The most common time of day flights depart is 9:00a.m., with 68% of flights taking off in the afternoon.

As of September 2026, 126 flights take off from Washington, D.C. and land in Montreal each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.