Alaska Airlines Star Alliance

many traveller asked the question does Alaska Airlines part of Star Alliance,

Alaska Airlines is not part of any of the three major airline alliances like Star Alliance, The airline's frequent flyer program is called Mileage Plan.

Mileage Plan is the travel rewards program of the Alaska Airlines and Horizon Air. Mileage Plan airline partners include prominent members of Oneworld, including American Airlines, British Airways, Cathay Pacific, Qantas, and LAN Airlines, as well as SkyTeam members, such as Delta Air Lines, Korean Air, KLM, and Air France. Alaska also partnered with Continental Airlines until the former SkyTeam carrier joined Star Alliance on October 25, 2009.

The Mileage Plan program has no membership fee and any mileage will be valid to the last day of the 24th month following the month of the last flight or transaction date. In addition, if a Mileage Plan member does not accumulate mileage within nine months after becoming a member, or a Mileage Plan member's account remains inactive at zero mileage for a consecutive 24 month period, the Mileage Plan account will be canceled
Alaska Airlines does not participate in Star Alliance, but the airline has codeshare agreements with several United States airlines. It currently has codeshare agreements with American Airlines, Delta Air Lines, PenAir, and Era Aviation. Alaska Airlines also has codeshare agreements with foreign carriers
Alaska Airlines's regional carrier, Horizon Air, is closely integrated into Alaska's operations, with Alaska and Horizon sharing many routes. Alaska and Horizon are owned by the same parent company, Alaska Air Group.