Cheap flights from Portland, ME to Seattle, WA

Travelers frequently search for route combinations, such as Portland and San Francisco.

Travelers frequently search for route combinations, such as Seattle and New York, San Francisco, Detroit, Orlando, Toronto, Montreal, Vancouver, Calgary, Winnipeg, Edmonton, Ottawa, Kelowna, Quebec City, Victoria, Saskatoon.

The main airport in Portland is Portland International Jetport. It is also served by Logan International, Rhode Island T. F. Green Int'l Airport, Portland International Jetport, Manchester–Boston Regional, Bangor International, Lebanon Municipal, Knox County Regional, Hancock County-Bar Harbor, Portsmouth International Airport at Pease, Augusta State.

The main airport in Seattle is Seattle–Tacoma International. It is also served by Vancouver International, Portland International, Bellingham International, Abbotsford International, Victoria Inner Harbour SPB, Paine Field Everett, Vancouver Harbour Flight Centre, Yakima Air Terminal, Pangborn Memorial.

Yes, it's possible to combine different modes of transport between Portland and Seattle thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Portland and Seattle can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Portland and Seattle with Alaska Airlines, Frontier Airlines, United Airlines, BREEZE, Spirit Airlines.

If you don’t have specific dates for your trip between Portland and Seattle, 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 Seattle, 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.