Cheap flights from Ottawa to District of Columbia from $192

In general, April 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 $100. If you don’t want to visit District of Columbia in April, then you should wait until August to fly from Ottawa, when ticket prices are also cheap, with an average price of $114.

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 $509. 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 $670.

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 $488 when looking at flights departing in the morning. Flights to District of Columbia are more costly at noon, with an average ticket price of $701. 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. Reagan-National for the best Ottawa - District of Columbia flight prices

You could potentially save up to 5% on your flight if you consider stops on a Ottawa to District of Columbia flight.

Air Canada, Porter Airlines, and United Airlines 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 72% 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.

9 flights are operational daily from Ottawa to District of Columbia as of May 2026. The most popular departure time for this route is 10:00AM, with 57% of flights per day taking off at noon.

As of May 2026, there are 68 flights per week flying from Ottawa to District of Columbia. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.