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 April 30, 2013, through May 20, 2013. Simply enter Discount Code EC2639 when you book at alaskaair.com. Your exclusive Insider Extra Discount offer ends April 22, 2013. Use current promotional code coupon to save special fares online with Alaska Airlines. The cheap airline tickets are only available through 22 April 2013. Travel with this promotion coupon code must occur between 30 April 2013 and 20 May 2013.