Travelers boarding a Frontier Airlines aircraft at Dallas/Fort Worth International Airport (DFW) can count on a seamless and delightful journey. The Frontier Airlines terminal at DFW, one of the busiest airports in the nation, is a shining example of how the airport is ready to accommodate modern travelers. Frontier Airlines DFW Terminal operates out of Terminal E at DFW. Terminal E is perfectly located, offering quick access to ground transportation, parking, and other amenities.