Cheap flights from Ontario to District of Columbia from $119

In general, November is the cheapest month to fly from Region of Ontario to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $275. If you don’t want to visit District of Columbia in November, then you should wait until January to fly from Region of Ontario, when ticket prices are also cheap, with an average price of $275.

The cheapest day to depart on your flight to District of Columbia is on a Friday when prices can be found for as low as $329. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $565.

Flying to District of Columbia from Region of Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $347 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the evening, with an average ticket price of $507. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to District of Columbia from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $307 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 Region of Ontario for as low as $286 on momondo.

There are 4 cabin classes available to choose from on Region of Ontario 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.

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

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to District of Columbia from Region of Ontario according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 6 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

As of September 2026, there are 55 flights per day flying from Region of Ontario to District of Columbia. The most common time of day flights depart is 2:00PM, with 40% of flights taking off in the afternoon.

385 flights are operational weekly from Region of Ontario to District of Columbia as of September 2026. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.