Frontier Airlines is a low-cost carrier operating in the United States, offering a wide range of destinations throughout North America. With its focus on affordability and convenience, Frontier operates flights to over 100 cities, including popular tourist spots such as Orlando, Las Vegas, and Denver, as well as lesser-known treasures like Boise and Bismarck. Regardless of the purpose of your trip, Frontier's extensive route network provides numerous options for exploration, whether you are planning a vacation, a business trip or a quick getaway.