Cheap flights from Washington to District of Columbia from $148

In general, January is the cheapest month to fly from State of Washington to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $91. If you don’t want to visit District of Columbia in January, then you should wait until July to fly from State of Washington, when ticket prices are also cheap, with an average price of $113.

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 $423. 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 State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $604.

Flying to District of Columbia from State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $352 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $499. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to District of Columbia from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $433 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 State of Washington for as low as $354 on momondo.

There are 4 cabin classes available to choose from on State of Washington 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.

United Airlines, Delta, and Southwest are the most popular carriers operating from Washington to District of Columbia

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to District of Columbia from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 7 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

26 flights are operational daily from State of Washington to District of Columbia as of June 2026. The most popular departure time for this route is 4:00PM, with 36% of flights per day taking off in the afternoon.

As of June 2026, 182 flights take off from State of Washington and land in District of Columbia each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.