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Portsmouth International Airport to Dulles International Airport flight

Find the cheapest Boston to Washington D.C. flights over the next 3 months. One-way fares from €150, return fares from €150.

    • Cheapest
      PSM 19:01
      15h 20m
      1 stop
      IAD 10:21
      Boston - Washington D.C. | Sun, Nov 22 | Allegiant Air
      €150 €203
      26% off
      26% off
      €203 €150
    • BOS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Boston - Washington D.C. | Mon, Oct 26 | Normal Airline
      Find more flights
      Find more flights
    • PSM 19:01
      15h 20m
      1 stop
      IAD 10:21
      Boston - Washington D.C. | Sun, Nov 22 | Allegiant Air
      €150 €203
      26% off
      26% off
      €203 €150
    • BOS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Boston - Washington D.C. | Mon, Oct 26 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Boston to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

About Portsmouth International Airport and Dulles International Airport

Learn about Portsmouth International Airport (PSM) and Dulles International Airport (IAD) — including location, terminals, transportation, and travel tips.

Flight distance 724.13km
Cheapest one-way ticket price €150

FAQs for Portsmouth International Airport to Dulles International Airport Flights

  • What is the average price of a flight from Portsmouth International Airport to Dulles International Airport?

    Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Portsmouth International Airport to Dulles International Airport is €246. Prices may vary depending on the departure date, airline, and availability.
  • Enter Portsmouth International Airport and Dulles International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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