Cheap flights from Ontario to Washington, D.C. from C$ 181

If you aren’t able to travel during the month of October, then book flights to Washington, D.C. from Region of Ontario during January instead. Flights to Washington, D.C. in January, while not as cheap as those in October, still average around C$ 383.

The cheapest day to depart from Region of Ontario to Washington, D.C. is on a Friday. Travellers who choose to depart for Washington, D.C. on a Friday will often find tickets for as low as C$ 545. The most expensive day to fly to Washington, D.C. is Sunday, with ticket prices averaging around C$ 925.

In the afternoon is the cheapest time of day to fly from Region of Ontario to Washington, D.C. when you can find flight prices for as low as C$ 521. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Washington, D.C., so prices are often more expensive at around C$ 826 per ticket.

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

You are more likely to see cheaper flights to Washington, D.C. from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around C$ 430 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Region of Ontario for as low as C$ 399 on momondo.

There are 4 cabin classes available to choose from on Region of Ontario to Washington, D.C. 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 United Airlines are the most popular carriers operating from Ontario to Washington, D.C.

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to Washington, D.C. from Region of Ontario according to our data. Air Canada is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 7 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

51 flights are operational daily from Region of Ontario to Washington, D.C. as of August 2026. The most popular departure time for this route is 9:00a.m., with 38% of flights per day taking off at noon.

As of August 2026, there are 362 flights per week flying from Region of Ontario to Washington, D.C.. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.