Cheap flights from Montreal to District of Columbia from C$ 195

The month of October is, on average, the cheapest month to fly to District of Columbia from Montreal, with most prices found around C$ 375. If you aren’t able to travel during the month of October, then book flights to District of Columbia from Montreal during May instead. Flights to District of Columbia in May, while not as cheap as those in October, still average around C$ 398.

The cheapest day to depart from Montreal to District of Columbia is on a Friday when prices can be found for as low as C$ 749. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to District of Columbia on Sunday is C$ 1,164.

Our data shows that the cheapest Montreal to District of Columbia flights are usually those with departure times in the afternoon. Our users have found flights to District of Columbia in the afternoon for as low as C$ 754. In the evening is when there is more demand to fly to District of Columbia, so prices are often more expensive at around C$ 1,073 per ticket.

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

You are more likely to see cheaper flights to District of Columbia from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around C$ 434 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Montreal for as low as C$ 291 on momondo.

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

Air Canada, United Airlines, and Delta are the most popular carriers operating from Montreal to District of Columbia

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to District of Columbia from Montreal according to our data. Air Canada is the first choice among our users, with 63% of people opting to fly with this airline when travelling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

The number of flights available between Montreal and District of Columbia is 13 per day as of March 2026. The most frequent departure time is 9:00a.m., with 40% of daily flights leaving at noon.

The number of flights available between Montreal and District of Columbia is 97 per week as of March 2026. The most frequent departure day is Wed, with 15% of weekly flights leaving on this day.