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 January 29, 2013, through February 18, 2013. Hurry, your exclusive Insider Extra Discount offer ends January 21, 2013. Use this promotion code for great discout with Alaska Airlines. Book your tickets by 21 January 2013. Travel dates with discount tickets between 29 January 2013 and 18 February 2013.