Cheap flights from Seattle, WA to Harlingen, TX

Travelers frequently search for route combinations, such as Seattle and London, Las Vegas, Denver, Phoenix, Dublin, Melbourne, Orlando, Salt Lake City, San Jose, Vancouver, Manchester, Edinburgh, San Francisco, Philadelphia, Dallas, Washington, D.C., New York, Atlanta, Los Angeles, Rome.

Travelers frequently search for route combinations, such as Harlingen and Manchester, London, Dublin, Málaga, Fort Lauderdale, New York, Orlando, Las Vegas, Denver, Chicago, Miami, Los Angeles, Atlanta, Mexico City, Bogotá, Dallas, Phoenix, Philadelphia, San Francisco, Cancún.

Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Kenmore Air Harbor Seaplane Base, Boeing Field.

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

The main airport in Harlingen is Valley International. It is also served by General Lucio Blanco International, Matamoros International, McAllen Miller International, Nuevo Laredo International, Brownsville/South Padre Island International, Laredo International, Valley International, Corpus Christi International.

Yes, it's possible to combine different modes of transport between Seattle and Harlingen thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Seattle and Harlingen 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 Seattle and Harlingen with United Airlines.

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