Cheap flights from Portland to Kos from $475

Travelers frequently search for route combinations, such as Portland and Las Vegas, Mexico City, Los Angeles, Guadalajara, San Diego, Phoenix, Dallas, Ontario, Minneapolis, San Francisco, Denver, Chicago, Houston, Cleveland, Burbank, Santa Ana, Salt Lake City, Calgary, Atlanta, Orlando.

Travelers frequently search for route combinations, such as Kos and New York, Orlando, Dallas, Amsterdam, Bucharest, Nuremberg, Frankfurt, Marseille, Tel Aviv, Milan, Copenhagen, Albany, Saint Croix, Minneapolis, Miami, Atlanta, Los Angeles, Salt Lake City, Harrisburg, Budapest.

The main airport in Portland is Portland International. It is also served by Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Kenmore Air Harbor Seaplane Base, Boeing Field.

The main airport in Kos is Kos Island International. It is also served by Kos Island International, Kalymnos Island National.

Currently, you can fly between Portland and Kos with SKY express, Aegean, Norse Atlantic Airways, Alaska Airlines, Hawaiian Airlines.

If you don’t have specific dates for your trip between Portland and Kos, 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 Portland and Kos, 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 Portland. The main one is Portland International and other nearby airports include Seattle–Tacoma International, Portland International, Eugene, Roberts Field, Kenmore Air Harbor Seaplane Base, Boeing Field

There are a number of airports in and around Kos. The main one is Kos Island International and other nearby airports include Kos Island International, Kalymnos Island National.