If you're looking to get out of town, you can fly out of Denver International airport (DIA) for as low as $19 one-way. But you have to buy your tickets today. Frontier airlines is having another one of their one-day sales where you can fly out of DIA for as low as $19 and for as much as $49... still a great deal. You can fly to places like Salt Lake City, Minneapolis, Las Vegas, Dallas, Chicago, Houston, Los Angeles, Seattle, Austin, New York and more. Each destination has days that you must fly on, however each city has several days to choose from. The biggest stipulation is that you must by your tickets today before 10:00 p.m. mountain time.