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Dulles International Airport to Portsmouth International Airport flight
    • IAD 17:50
      23h 42m
      1 stop
      PSM 17:32
      Washington D.C. - Boston | Fri, Nov 6 | Allegiant Air
      BOS 09:22
      1h 48m
      Direct
      DCA 11:10
      Boston - Washington D.C. | Mon, Nov 9 | Jetblue Airways
      CAD 563 CAD 805
      30% off
      30% off
      CAD 805 CAD 563
    • IAD 11:12
      8h 45m
      1 stop
      PSM 19:57
      Washington D.C. - Boston | Sun, Nov 1 | Frontier Airlines
      BOS 06:10
      1h 49m
      Direct
      DCA 07:59
      Boston - Washington D.C. | Tue, Nov 3 | Jetblue Airways
      CAD 579 CAD 805
      28% off
      28% off
      CAD 805 CAD 579
    • WAS 13:00
      17h 25m
      1 stop
      BOS 14:00
      Washington D.C. - Boston | Sun, Nov 1 | Normal Airline
      BOS 15:00
      6h
      Direct
      WAS 16:00
      Boston - Washington D.C. | Tue, Nov 3 | Normal Airline
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Displayed flight fares from Washington D.C. to Boston 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 Dulles International Airport to Portsmouth International Airport?

The cheapest airline flying from Dulles International Airport to Portsmouth International Airport is Allegiant Air (from CAD 380) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Allegiant Air
From CAD 380

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What is the flight schedule from Dulles International Airport to Portsmouth International Airport?

Check the schedule for flights from Washington D.C. to Boston and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. MX711

    Dulles International Airport

    18:46

    IAD

    3h 58m

    Direct

    22:44

    MCO

    S - - - T - -
    Search

  2. MX846

    Orlando International Airport

    15:16

    MCO

    3h 7m

    Direct

    18:23

    PSM

    - - - - - F -
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About Dulles International Airport and Portsmouth International Airport

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

Flight distance 724.13km
Cheapest return ticket price CAD 563

FAQs for Dulles International Airport to Portsmouth International Airport Flights

  • What is the average price of a flight from Dulles International Airport to Portsmouth 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 Dulles International Airport to Portsmouth International Airport is CAD 344. Prices may vary depending on the departure date, airline, and availability.
  • Enter Dulles International Airport and Portsmouth 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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