Frontier will be starting service next year with some Mesa CRJs to be called Frontier ExpressJet. Frontier wants them to be in Frontier colors due to Mesa's unsavory history in Colorado. The service will be to four cities/25 flights per day from DIA. Possible cities: Oklahoma City, Tulsa, St. Louis, Tuscon, Little Rock, Memphis and Boise.
Source: Denver Post 9-6-01