What Terminal is Frontier Airlines at San Diego Airport ?Offering a vast array of local and international destinations, Frontier Airlines is a well-known ultra-low-cost airline in the United States. Travelers looking for affordable travel choices frequently choose the airline because of its dedication to price and operational efficiency. To guarantee a smooth and comfortable flight with Frontier Airlines, passengers should be aware of the airline’s cost schedule, book their flights well in advance, and be informed on travel advisories and requirements for their chosen destinations .Established in Denver, Colorado, in 1994, Frontier Airlines has a long history. The airline has experienced multiple ownership changes and makeovers throughout the years. The carrier filed for bankruptcy in 2009 and came out of it with a new business strategy that included the ultra-low-cost approach for which it is now renowned. With this strategy, cost-effectiveness is given priority, allowing Frontier to provide reasonably priced tickets to a range of locations.