Dome of the US Capitol in Washington, DC, with an American flag

Cheap Flights from Boston (BOS) to Washington (DCA)

  • About 399 miles
  • About 1.3 hours
  • Best months: Apr, Sep, Oct
Passengers & cabin

Start typing a city or airport code, like New York or LAX.

Your search is ready

Want deals for this trip? Leave your email and we will send price alerts. It is optional: you can skip it and see prices now.

See our privacy policy. Prices open on our booking partner's site in a new tab.

Washington is calling, and Boston travelers have plenty of options. Airlines on BOS to DCA include Delta, American and JetBlue. Expect about 1.3 hours in the air and fares from $146 when you book at the right moment.

Tips for finding a lower fare

  • Try booking a Tuesday or Wednesday departure to Washington; those days are quieter on most carriers.
  • Use a fare calendar and look at a full month before choosing dates.
  • Compare the total trip cost, including bags and seat fees, not just the base fare to DCA.

Airlines on this route

Delta, American, JetBlue

Things to see in Washington

  • Smithsonian museums
  • Lincoln Memorial
  • The Wharf

Frequently asked questions

When is the cheapest time to fly from Boston to Washington?

Fares on BOS to DCA are often lower in Apr, Sep and Oct. Prices move with demand, so compare a few dates on the partner site before you decide.

How long is the flight from BOS to DCA?

A nonstop flight takes about 1.3 hours. Itineraries with a connection take longer, depending on the layover.

Which airlines fly from Boston to Washington?

Carriers we commonly see on this route include Delta, American and JetBlue. Schedules and availability change, so check current options when you search.

How far ahead should I book BOS to DCA?

For most domestic trips, booking about 1 to 3 months ahead gives a good balance of price and choice. Holiday travel is better booked earlier.

Is the price I see here the final price?

No. Fares shown on this page are indicative and change often. The final price, taxes and fees are shown on the partner site at booking.

Get a custom quote

Tell us about your trip and a travel agent will call or text you with options. This is a request, not a booking, and fares are not guaranteed.

See our privacy policy.