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Dulles International Airport to Portsmouth International Airport flight

Search for flights from Washington D.C. to Boston and check out affordable one-way and round-trip options.

      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
        BOS 15:00
        6h
        Direct
        WAS 16:00
        Boston - Washington D.C. | Wed, Oct 7 | Normal Airline
        Search
        Search
      • IAD 20:57
        20h 35m
        1 stop
        PSM 17:32
        Washington D.C. - Boston | Wed, Nov 11 | Allegiant Air
        US$161 US$230
        30% off
        30% off
        US$230 US$161
      • WAS 13:00
        17h 25m
        1 stop
        BOS 14:00
        Washington D.C. - Boston | Mon, Oct 5 | Normal Airline
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Flight prices from Dulles International Airport to Portsmouth International Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

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 US$161) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Allegiant Air
From US$161

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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. G4922

    Dulles International Airport

    20:57

    IAD

    2h 28m

    Direct

    23:25

    PGD

    - - - W - - -
    Search

  2. G4919

    Punta Gorda Airport

    07:20

    PGD

    2h 58m

    Direct

    10:18

    PSM

    - - T - T F -
Find more flights and airlines

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 one-way ticket price US$161

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 US$217. 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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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

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Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.