Cheap flights from Ottawa to District of Columbia from $186

In general, August is the cheapest month to fly from Ottawa to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $304. If you don’t want to visit District of Columbia in August, then you should wait until April to fly from Ottawa, when ticket prices are also cheap, with an average price of $309.

The cheapest day to depart on your flight to District of Columbia is on a Wednesday when prices can be found for as low as $508. 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 Ottawa because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $691.

Flying to District of Columbia from Ottawa in the morning is the least expensive time of day to depart. momondo users have found prices as low as $486 when looking at flights departing in the morning. Flights to District of Columbia are more costly at noon, with an average ticket price of $703. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

There are 4 cabin classes available to choose from on Ottawa 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.

You could potentially save up to 13% on your flight if you consider stops on a Ottawa to District of Columbia flight.

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

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to District of Columbia from Ottawa according to our data. Air Canada is the first choice among our users, with 74% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 4 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

7 flights are operational daily from Ottawa to District of Columbia as of March 2026. The most popular departure time for this route is 9:00AM, with 43% of flights per day taking off at noon.

As of March 2026, there are 51 flights per week flying from Ottawa to District of Columbia. The most common day of the week flights depart is Tue, with 20% of flights taking off on this day.