Frontier Airlines is a wholly owned subsidiary of Republic Airways Holdings. Founded in 1994, the airline provides services from its Denver hub to nearly 50 destinations in more than 30 states. It is one of the largest jet carriers of Denver International Airport with an average of over 250 daily departures and arrivals. Its services include advanced seat assignments, electronic ticketing, and curbside and online check-in. It offers an EarlyReturns mileage program that includes a free roundtrip flight anywhere on the domestic route system. The airline operates a fleet of aircrafts, including more than 130 passenger Airbus A319 jets and over 110 passenger Airbus A318 jets. Frontier Airlines offers several corporate rebate and discount programs to businesses. It also offers services to nearly 35 regional destinations in partnership with Great Lakes Aviation.