Cheap flights from Boston to Washington, D.C. from $64

In general, December is the cheapest month to fly from Boston to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $251. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $252.

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $396. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Washington, D.C. Dulles Intl Airport for around $627.

Flying to Washington, D.C. Dulles Intl Airport from Boston in the morning is the least expensive time of day to depart. momondo users have found prices as low as $447 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $650 on average. Flights to Washington, D.C. Dulles Intl Airport from Boston at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Boston Logan Intl to Washington, D.C. Dulles Intl for the best Boston Logan Intl - Washington, D.C. Dulles Intl flight prices

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $303 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Boston for as low as $253 on momondo.

There are 4 cabin classes available to choose from on Boston to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Boston to Washington, D.C. Dulles Intl Airport.

As of September 2026, prices for Boston to Washington, D.C. Dulles Intl Airport flights are approximately 29% more expensive when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Boston Logan Intl to Washington, D.C. Dulles Intl

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Boston according to our data. United Airlines is the first choice among our users, with 98% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

The number of flights available between Boston and Washington, D.C. Dulles Intl Airport is 11 per day as of September 2026. The most frequent departure time is 9:00AM, with 30% of daily flights leaving at noon.

As of September 2026, there are 82 flights per week flying from Boston to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Tue, with 24% of flights taking off on this day.