http://www.mycokerewards.com/rewards/Southwest-Airlines%C2%AE-Instant-Win/52798

click section 5b of the rules for free entry
31 Prizes: 2 round trip tickets to a Southwest Airlines® Destination, terms and conditions apply. Vouchers are valid on round trip air travel on Southwest Airlines for U.S. Domestic and Puerto Rico flights only. The tickets expire on 5/31/2016. Southwest Airlines tickets will bear the date of issue and the date of expiration. Expiration dates will not be extended, and tickets will not be refundable or redeemable for cash or credit at any time, nor will tickets be replaced if lost or stolen. Tickets are subject to Southwest Airlines terms and conditions. Tickets valid on Southwest-operated, published, scheduled service only in the United States and Puerto Rico. Tickets are not valid on code-share or AirTran operated service, or any international service. Tickets are not transferable and cannot be sold to a third party. No substitutions are allowed. Certain restrictions may apply. Travel may be booked up to 2 hours prior to departure and is based on seat availability. Approximate Retail Value (“ARV”): $800. Limit: 1 prize per person. Total ARV: $24,800

May 5 4:30 pm