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Porto Airport to Dulles International Airport flight

Explore the cheapest one-way and round-trip flights from Porto Airport to Dulles International Airport over the next 90 days, with one-way fares from €346 and round-trip from €444. Based on Trip.com's latest 7-day flight data.

    • OPO 8:40 PM
      24h 40m
      IAD 4:20 PM
      Porto - Washington D.C. | Mon, Nov 9 | Iberia
      IAD 5:50 PM
      21h 10m
      OPO 8:00 PM
      Washington D.C. - Porto | Thu, Nov 12 | Finnair
      €444 €655
      32% off
      32% off
      €655 €444
    • OPO 6:00 PM
      26h 15m
      IAD 3:15 PM
      Porto - Washington D.C. | Sat, Nov 7 | TAP Air Portugal
      IAD 5:25 PM
      15h 5m
      OPO 1:30 PM
      Washington D.C. - Porto | Tue, Nov 10 | TAP Air Portugal
      €517 €655
      21% off
      21% off
      €655 €517
    • OPO 7:10 PM
      25h 25m
      IAD 3:35 PM
      Porto - Washington D.C. | Sun, Oct 18 | KLM
      DCA 5:05 PM
      12h 25m
      OPO 10:30 AM
      Washington D.C. - Porto | Sun, Oct 25 | KLM
      €521 €655
      20% off
      20% off
      €655 €521
    • OPO 11:00 AM
      14h 35m
      IAD 8:35 PM
      Porto - Washington D.C. | Sat, Nov 21 | TAP Air Portugal
      IAD 10:30 PM
      10h
      OPO 1:30 PM
      Washington D.C. - Porto | Wed, Nov 25 | TAP Air Portugal
      €523
      20% off
      €655 €523
    • OPO 5:55 AM
      15h 10m
      IAD 4:05 PM
      Porto - Washington D.C. | Sat, Oct 24 | KLM
      IAD 7:40 PM
      10h 55m
      OPO 10:35 AM
      Washington D.C. - Porto | Fri, Oct 30 | KLM
      €524
      20% off
      €655 €524
    • OPO 5:55 AM
      15h 10m
      IAD 4:05 PM
      Porto - Washington D.C. | Sat, Oct 24 | Air France
      IAD 7:40 PM
      10h 55m
      OPO 10:35 AM
      Washington D.C. - Porto | Fri, Oct 30 | Air France
      €524
      20% off
      €655 €524
    • OPO 5:55 AM
      15h 10m
      IAD 4:05 PM
      Porto - Washington D.C. | Sun, Oct 18 | Air France
      IAD 12:30 PM
      17h
      OPO 10:30 AM
      Washington D.C. - Porto | Sun, Oct 25 | Air France
      €525
      20% off
      €655 €525
    • OPO 8:20 AM
      13h
      IAD 4:20 PM
      Porto - Washington D.C. | Tue, Nov 10 | Iberia
      IAD 5:50 PM
      17h 10m
      OPO 4:00 PM
      Washington D.C. - Porto | Thu, Nov 12 | Iberia
      €526
      20% off
      €655 €526
    • OPO 8:20 AM
      13h
      IAD 4:20 PM
      Porto - Washington D.C. | Thu, Nov 19 | American Airlines
      IAD 5:50 PM
      12h 55m
      OPO 11:45 AM
      Washington D.C. - Porto | Thu, Nov 26 | American Airlines
      €526
      20% off
      €655 €526
    • OPO 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Porto - Washington D.C. | Sun, Oct 18 | Normal Airline
      WAS 3:00 PM
      6h
      Nonstop
      OPO 4:00 PM
      Washington D.C. - Porto | Tue, Oct 20 | Normal Airline
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    • Cheapest
      OPO 8:20 AM
      13h
      1 stop
      IAD 5:20 PM
      Porto - Washington D.C. | Mon, Nov 2 | Iberia
      €346 €486
      28% off
      28% off
      €486 €346
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Thu, Nov 26 | American Airlines
      €371 €486
      24% off
      24% off
      €486 €371
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Mon, Nov 23 | American Airlines
      €380 €486
      22% off
      22% off
      €486 €380
    • OPO 8:40 PM
      24h 40m
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Mon, Dec 7 | Iberia
      €383
      21% off
      €486 €383
    • OPO 8:40 PM
      24h 40m
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Sun, Dec 13 | Iberia
      €384
      21% off
      €486 €384
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Sat, Nov 21 | Iberia
      €387
      20% off
      €486 €387
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Mon, Nov 16 | American Airlines
      €388
      20% off
      €486 €388
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Thu, Nov 26 | Iberia
      €390
      20% off
      €486 €390
    • OPO 8:20 AM
      13h
      1 stop
      IAD 4:20 PM
      Porto - Washington D.C. | Sun, Nov 15 | American Airlines
      €390
      20% off
      €486 €390
    • OPO 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Porto - Washington D.C. | Sun, Oct 18 | Normal Airline
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Displayed flight fares from Porto 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 Porto Airport to Dulles International Airport?

The cheapest airline flying from Porto Airport to Dulles International Airport is Royal Air Maroc (from €342) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Royal Air Maroc
From €342
Iberia
From €346
Ryanair
From €367
American Airlines
From €371
Air France
From €393
KLM
From €393
TAP Air Portugal
From €405
Air Europa
From €407
easyJet
From €407
British Airways
From €423

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AY4790

    Porto Airport

    12:25 PM

    OPO

    1h 20m

    Nonstop

    2:45 PM

    MAD

    S M T W T F S
    Search

  2. AY5367

    Adolfo Suárez Madrid-Barajas Airport

    12:20 PM

    MAD

    9h 10m

    Nonstop

    3:30 PM

    IAD

    S M T W T F S

  3. IB1150

    Porto Airport

    12:25 PM

    OPO

    1h 20m

    Nonstop

    2:45 PM

    MAD

    S M T W T F S
    Search

  4. IB361

    Adolfo Suárez Madrid-Barajas Airport

    12:20 PM

    MAD

    9h 10m

    Nonstop

    3:30 PM

    IAD

    S M T W T F S

  5. IB544

    Porto Airport

    8:20 AM

    OPO

    1h 20m

    Nonstop

    10:40 AM

    MAD

    S M T W T F S
    Search

  6. IB361

    Adolfo Suárez Madrid-Barajas Airport

    12:20 PM

    MAD

    9h 10m

    Nonstop

    3:30 PM

    IAD

    S M T W T F S

  7. AF1517

    Porto Airport

    5:55 AM

    OPO

    2h 15m

    Nonstop

    9:10 AM

    CDG

    S M T W T F S
    Search

  8. AF050

    Roissy-Charles De Gaulle Airport

    1:25 PM

    CDG

    8h 40m

    Nonstop

    4:05 PM

    IAD

    S M T W T F S

  9. TP1937

    Porto Airport

    5:05 AM

    OPO

    1h

    Nonstop

    6:05 AM

    LIS

    S M T W T F S
    Search

  10. TP231

    Humberto Delgado Airport

    11:40 AM

    LIS

    8h 30m

    Nonstop

    3:10 PM

    IAD

    S M T W T F S

  11. AF1517

    Porto Airport

    5:55 AM

    OPO

    2h 15m

    Nonstop

    9:10 AM

    CDG

    S M T W T F S
    Search

  12. AF052

    Roissy-Charles De Gaulle Airport

    5:00 PM

    CDG

    8h 35m

    Nonstop

    7:35 PM

    IAD

    - M T W - F S

  13. TP1939

    Porto Airport

    7:05 AM

    OPO

    1h

    Nonstop

    8:05 AM

    LIS

    S M T W T F S
    Search

  14. TP233

    Humberto Delgado Airport

    5:15 PM

    LIS

    8h 20m

    Nonstop

    8:35 PM

    IAD

    S M T W T F S

  15. TP1937

    Porto Airport

    5:05 AM

    OPO

    1h

    Nonstop

    6:05 AM

    LIS

    S M T W T F S
    Search

  16. AA7063

    Humberto Delgado Airport

    1:40 PM

    LIS

    2h 50m

    Nonstop

    4:30 PM

    LHR

    - M - - - - -

  17. AA7002

    Heathrow Airport

    5:05 PM

    LHR

    8h 15m

    Nonstop

    8:20 PM

    IAD

    S M T W T F S

  18. IB1154

    Porto Airport

    8:40 PM

    OPO

    1h 20m

    Nonstop

    11:00 PM

    MAD

    S M T W T F S
    Search

  19. AA8729

    Adolfo Suárez Madrid-Barajas Airport

    12:20 PM

    MAD

    9h 10m

    Nonstop

    3:30 PM

    IAD

    S M T W T F S

  20. IB1154

    Porto Airport

    8:40 PM

    OPO

    1h 20m

    Nonstop

    11:00 PM

    MAD

    S M T W T F S
    Search

  21. IB361

    Adolfo Suárez Madrid-Barajas Airport

    12:20 PM

    MAD

    9h 10m

    Nonstop

    3:30 PM

    IAD

    S M T W T F S
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About Porto Airport and Dulles International Airport

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

Flight distance 5,703.63 km
Cheapest one-way ticket price €346
Cheapest return ticket price €444

FAQs for Porto Airport to Dulles International Airport Flights

  • What are the cheapest flights from Porto Airport to Dulles International Airport?

    One-way flights from Porto Airport to Dulles International Airport currently start from €346, and round-trip fares start from €444. The current lowest fare is a Iberia flight departing on Mon, Nov 2; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Porto Airport to Dulles International Airport is €722. Prices may vary depending on the departure date, airline, and availability.
  • Enter Porto 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.

Popular Destinations

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.