Alaskan Airlines is running a special promotion for California residents right now. You can receive a unique $50 discount code for simply joining their loyalty program, “Mileage Plan,” between now through October 26, 2012. Joining their Mileage Plan is free! Deets: Offer valid through October 26, 2012. The $50 Discount Code sign-up offer is valid for new Mileage Plan member sign-ups only. The recipient of the discount code must be the traveler, and limit one discount code per person. Discount codes valid for $50 off a minimum of $100 fare…… (click read more!)