Cheap Flights from Washington Dulles International Airport to Porto (OPO) Find and Compare the Best Airline Deals | Skyticket

Departure Date

2025/8
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3Search	4Search	5842	61,077	7Search	8Search	9882
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2025/8
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Total Fares（Round-Trip/Economy）: USD /Per Person

* Displayed fare(s) may differ from the actual search result

Washington Dulles－Porto Airport
August Lowest Airfares
USD779

The airfare displayed above is for TAP Portugal

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Washington Dulles－Porto Airport
September Lowest Airfares
USD718

The airfare displayed above is for Delta Air Lines

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Washington Dulles－Porto Airport
October Lowest Airfares
USD606

The airfare displayed above is for TAP Portugal

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Washington Dulles－Porto Airport
November Lowest Airfares -----
Washington Dulles－Porto Airport
December Lowest Airfares
USD688

The airfare displayed above is for United Airlines

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Washington D.C－Porto
Estimated Flight Time
9 Hours 03 Minutes
Washington D.C－Porto
Number of Operating Airlines
4

Operating Airlines for Washington Dulles－Porto Airport Route
British Airways

Klm Royal Dutch Airlines

Lufthansa

Turkish Airlines

Other Destinations from:Washington D.C

Washington Dulles－Lisbon(Portela)
USD490〜
* Fares vary in accordance to seat availability
Other Departures to: Porto

Dallas/Fort Worth Airport－Porto(OPO)
USD1,198〜
O'Hare Airport－Porto(OPO)
USD598〜
Hartsfield-Jackson Atlanta Airport－Porto(OPO)
USD717〜
Ronald Reagan Washington National Airport－Porto(OPO)
USD630〜
* Fares vary in accordance to seat availability