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102 € Cheap Flights from Boston to Washington Dulles

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      Travellers and cabin class, 1 Adult, Economy

      Compare Boston to Washington Dulles flight deals

      Find the cheapest month or even day of the year to fly to Washington Dulles

      Book the best Washington Dulles fare with no extra fees

      Flight deals from Boston to Washington Dulles

      Looking for a cheap last-minute deal or the best return flight from Boston to Washington Dulles Airport? If you want to travel next month, return fares start from 102 €. Find the lowest prices on one-way and return tickets right here.
      Washington D.C..102 € per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Tue, 29 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 6 Oct, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Sat, 3 Oct, returning Mon, 5 Oct.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Sat, 3 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 5 Oct, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Thu, 20 Aug, returning Tue, 8 Sep.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Thu, 20 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 8 Sep, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Wed, 2 Sep, returning Sat, 5 Sep.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Wed, 2 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 5 Sep, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Sat, 14 Nov, returning Mon, 16 Nov.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Sat, 14 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 16 Nov, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Tue, 4 Aug, returning Tue, 11 Aug.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Tue, 4 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 11 Aug, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..102 € per passenger.Departing Wed, 26 Aug, returning Sat, 5 Dec.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Wed, 26 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 5 Dec, arriving in Boston Logan International.Price includes taxes and charges.From 102 €, select.
      Washington D.C..146 € per passenger.Departing Wed, 9 Dec, returning Mon, 4 Jan.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Wed, 9 Dec, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 4 Jan, arriving in Boston Logan International.Price includes taxes and charges.From 146 €, select.
      Washington D.C..146 € per passenger.Departing Thu, 3 Dec, returning Sun, 6 Dec.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Thu, 3 Dec, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 6 Dec, arriving in Boston Logan International.Price includes taxes and charges.From 146 €, select.
      Washington D.C..146 € per passenger.Departing Sat, 31 Oct, returning Sun, 8 Nov.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Sat, 31 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 8 Nov, arriving in Boston Logan International.Price includes taxes and charges.From 146 €, select.
      Washington D.C..168 € per passenger.Departing Tue, 28 Jul, returning Thu, 6 Aug.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Tue, 28 Jul, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 6 Aug, arriving in Boston Logan International.Price includes taxes and charges.From 168 €, select.
      Washington D.C..183 € per passenger.Departing Tue, 11 Aug, returning Tue, 13 Oct.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Tue, 11 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 13 Oct, arriving in Boston Logan International.Price includes taxes and charges.From 183 €, select.
      Washington D.C..189 € per passenger.Departing Sun, 3 Jan, returning Fri, 8 Jan.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Sun, 3 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Fri, 8 Jan, arriving in Boston Logan International.Price includes taxes and charges.From 189 €, select.
      Washington D.C..190 € per passenger.Departing Tue, 17 Nov, returning Tue, 1 Dec.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Tue, 17 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 1 Dec, arriving in Boston Logan International.Price includes taxes and charges.From 190 €, select.
      Washington D.C..190 € per passenger.Departing Wed, 28 Apr, returning Mon, 3 May.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Wed, 28 Apr, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 3 May, arriving in Boston Logan International.Price includes taxes and charges.From 190 €, select.
      Washington D.C..190 € per passenger.Departing Thu, 28 Jan, returning Mon, 8 Feb.Return flight with United.Outbound direct flight with United departs from Boston Logan International on Thu, 28 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 8 Feb, arriving in Boston Logan International.Price includes taxes and charges.From 190 €, select.

      Find the cheapest month to fly from Boston to Washington Dulles

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston to Washington Dulles flights are currently cheapest in August.
      Jul
      from 224 €
      Aug
      from 102 €
      Sep
      from 102 €
      Oct
      from 102 €
      Nov
      from 102 €
      Dec
      from 146 €
      Jan
      from 189 €
      Feb
      from 242 €
      Mar
      from 254 €
      Apr
      from 329 €
      May
      from 295 €
      Jun
      Find prices

      Direct flights from Boston to Washington Dulles

      Boston to Washington Dulles: Alternative routes

      Compare routes from Boston to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

      Washington Ronald Reagan

      5km from central Washington D.C.
      ClosestCheapest
      from 102 €
      Search flights

      Washington Dulles

      37km from central Washington D.C.
      Cheapest
      from 102 €
      Search flights

      Baltimore Washington International

      44km from central Washington D.C.
      Cheapest
      from 102 €
      Search flights

      Boston to Washington D.C.: Flight information

      The things to know before you go.
      Cheapest flight found102 €
      Cheapest month to flyAugust
      Average flight time1 hr, 44 mins
      Most popular airlineUnited
      Average flights per week143

      Finding cheap flights from Boston to Washington Dulles: Frequently asked questions

      The best price we found for a return flight from Boston to Washington Dulles is 102 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      1 hour and 44 minutes is the average flight time from Boston to Washington Dulles.
      United, Lufthansa and Avianca fly direct from Boston to Washington Dulles.
      As of July 2026, there are 143 flights per week flying from Boston to Washington Dulles.
      The cheapest month to fly from Boston to Washington Dulles is usually August.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Boston to Washington Dulles Airport on Tuesday, 4 August 2026.
      Yes – the average flight time is 1 hour and 44 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

      The cheapest airline that flies to Washington Dulles is United .

      How to find cheap flights to Washington D.C. (IAD) from Boston (BOSA)in 2026

      Looking for cheap tickets from Boston to Washington Dulles? Return tickets start from 102 € and one-way flights to Washington Dulles from Boston start from 61 €


      Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

      • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Boston to Washington Dulles. And with us there are no hidden fees - what you see is what you pay.
      • Compare flight deals to Washington D.C. from Boston from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Washington D.C. start from 61 € one-way.
      • Set up a Price Alert. You can easily track the fare of your cheap Boston-Washington Dulles flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
      • Flex your dates to find the best BOSA-IAD ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Washington Dulles from Boston.
      • Fly without stops. Only interested in direct flights between Boston and Washington Dulles? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results. Airlines that fly direct include: United
        Lufthansa
        Avianca
        Copa
        Republic Airways
        Ethiopian Airlines
        Austrian Airlines
        ANA (All Nippon Airways)
      • Find the cheapest Business class flights from Boston and Washington Dulles. We scour the internet for the best Business, Premium Economy and First Class flight fares to Washington D.C., too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
      • Include nearby airports in your search. Widen your search for Boston to Washington Dulles flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
      • Flexible on when you travel? The cheapest month to fly from Boston to Washington Dulles is August.
      • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between Boston and Washington Dulles whenever you want.

      Combine your flight to Washington Dulles from Boston with hotels and car hire

      Once you've secured your cheap flight ticket from Boston to Washington Dulles, discover the best prices and exclusive rates for hotels in Washington D.C. or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


      Plan the rest of your trip from Boston to Washington D.C.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.