Porter Airlines is offering the One of a Kind Christmas Show and Sale attendees a 10% discount on all fare classes.  Porter offers, free in-flight snacks and beverages (including beer and wine). The discounted fares are available from November 22 – December 8, 2010.   Please book online at www.flyporter.com or call 1- 888-619-8622 using the promo code OKCSS10.