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Portsmouth International Airport to Dulles International Airport flight

Explore the cheapest flights from Boston to Washington D.C. in the next three months. Based on Trip.com's data from the latest 7 days, one-way fares start at THB 7,680, and return tickets start at THB 7,680.

    • Cheapest
      PSM 18:47
      15h 34m
      1 stop
      IAD 10:21
      Boston - Washington D.C. | Mon, Nov 16 | Breeze Airways
      THB 7,680 THB 8,630
      11% off
      11% off
      THB 8,630 THB 7,680
    • BOS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Boston - Washington D.C. | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • PSM 18:47
      15h 34m
      1 stop
      IAD 10:21
      Boston - Washington D.C. | Mon, Nov 16 | Breeze Airways
      THB 7,680 THB 8,630
      11% off
      11% off
      THB 8,630 THB 7,680
    • BOS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Boston - Washington D.C. | Sat, Oct 31 | 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.

Which airline offers the cheapest flights from Portsmouth International Airport to Dulles International Airport?

The cheapest airline flying from Portsmouth International Airport to Dulles International Airport is Breeze Airways (from THB 7,680) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Breeze Airways
From THB 7,680

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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 THB 7,680

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 THB 9,290. 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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