Welcome to this week's Insider Extra Discount. You are eligible to save an additional 5% on the below listed Alaska Airlines flights when traveling from June 4, 2013, through June 24, 2013. Simply enter Discount Code EC2639 when you book at alaskaair.com.Your exclusive Insider Extra Discount offer ends May 27, 2013. Use this new promotional code to book online & save special fares online with Alaska Airlines. Book your tickets by 27 May 2013. Travel with promotional tickets must occur between 04 June 2013 and 24 June 2013.