Cheap flights from Washington, D.C. to Porto from $438

Travelers frequently search for route combinations, such as Washington, D.C. and Orlando, Atlanta, Mexico City, Los Angeles, Tampa, Miami, San Juan, Dallas, Denver, Istanbul, Guadalajara, New Delhi, Kathmandu, Paris, Fort Lauderdale, Houston, Toronto, Chicago, Kabul, Cancún.

Travelers frequently search for route combinations, such as Porto and New York, Boston, Los Angeles, Miami, Minneapolis, San Francisco, Detroit, Chicago, San Diego, Atlanta, Louisville, Orlando, Sarasota, Madrid, Barcelona, Paris, Bilbao, Lisbon, Ponta Delgada, Tel Aviv.

Washington, D.C. is mainly served by Washington Dulles International. But there are other airports nearby, including Baltimore–Washington International, Ronald Reagan Washington National.

The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Harrisburg International, Trenton–Mercer, Shenandoah Valley Regional, Lancaster, Hagerstown Regional.

The main airport in Porto is Porto. It is also served by Porto, Santiago de Compostela, A Coruña, Vigo–Peinador, Vila Real.

Currently, you can fly between Washington, D.C. and Porto with Ryanair, JetBlue Airways, TAP Portugal, Air France, KLM Royal Dutch Airlines.

If you don’t have specific dates for your trip between Washington, D.C. and Porto, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between Washington, D.C. and Porto, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Harrisburg International, Trenton–Mercer, Shenandoah Valley Regional, Lancaster, Hagerstown Regional