Cheap flights from Washington, D.C. Dulles Intl Airport to Toronto from C$ 120

The month of December is, on average, the cheapest month to fly to Toronto from Washington, D.C. Dulles Intl Airport, with most prices found around C$ 431. The month of January is another great option to travel to Toronto, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around C$ 441.

According to our data, Monday is the cheapest day to fly to Toronto from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Monday departure recently was C$ 428. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Washington, D.C. Dulles Intl Airport to Toronto on a Thursday will generally be more expensive and average around C$ 490. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Toronto from Washington, D.C. Dulles Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as C$ 420 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around C$ 564. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Dulles Intl to Toronto Island for the best Washington, D.C. Dulles Intl - Toronto flight prices

You are more likely to see cheaper flights to Toronto from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 522 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Washington, D.C. Dulles Intl Airport for as low as C$ 412 on momondo.

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport to Toronto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Porter Airlines, United Airlines, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Toronto

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Toronto from Washington, D.C. Dulles Intl Airport according to our data. Porter Airlines is the first choice among our users, with 50% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 3 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between Washington, D.C. and Toronto have experienced a delay on any given week. The average delay length over the past 12 months has been 122 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.

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

According to our data, United Airlines 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 November 2026, there are 17 flights per day flying from Washington, D.C. Dulles Intl Airport to Toronto. The most common time of day flights depart is 5:00p.m., with 57% of flights taking off in the afternoon.

As of November 2026, 120 flights take off from Washington, D.C. Dulles Intl Airport and land in Toronto each week. The most common flight departure day for this route is Wed, with 15% of weekly flights taking off on this day.