DENVER — Fancy yourself a spontaneous traveler? The new Frontier GoWild pass may be perfect for you. The Denver-based airline announced Tuesday that it's offering an annual flight pass that gives passengers unlimited travel to any of its destinations in the U.S., including Puerto Rico. For a limited time only, the airline is selling the passes for a discounted price of $599. The retail/renewal price is $1,999 a year. (www.9news.com) 更多...