With Aer Lingus set to begin service between the Emerald Isle and the Emerald City of Seattle on May 18, the two airlines are launching a new partnership.

The carriers will begin interline availability across their respective networks starting in April. Alaska Mileage Plan members will be able to earn and redeem miles on Aer Lingus flights and Aer Lingus AerClub members will also be able to earn and redeem miles on Alaska, starting at a later date.

Aer Lingus currently serves Dublin from 13 cities in North America, including from Alaska's gateway cities of Los Angeles, San Francisco and – starting May 18 – nonstop from Seattle.

Read More: Aer Lingus launches first-ever direct route between Seattle and Dublin

"This new partnership with Aer Lingus is another example of how Alaska is giving our Mileage Plan members more and more ways to travel and earn miles to all corners of the map through our diverse global partners," said Andrew Harrison, Alaska Airlines' executive vice president and chief commercial officer. "Aer Lingus provides our members even more reach for travel within Europe, with seamless service through Dublin to 24 cities in the U.K. and Europe."

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"We're pleased to join with Alaska Airlines. It's a meeting of like-minded, service-oriented carriers bringing attractive propositions to their respective travelers," said Greg Kaldahl, Aer Lingus' chief strategy and planning officer. "Our Aer Lingus guests will now be able to connect onwards to a wide range of destinations up and down the West Coast, Alaska, and Hawaii; while loyal Alaska flyers will gain the opportunity to fly transatlantic on Ireland's only 4-star airline. We are looking forward to a long and successful partnership."

Would you take advantage of this partnership? How about the new direct route between Ireland and Seattle? Share your thoughts in the comment section.

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Would you take advantage of this partnership? How about the new direct route between Ireland and Seattle? Share your thoughts in the comment section.