Book Frontier Airlines on OneTravel for the lowest air fare on Frontier flights! Frontier Airlines is a low-cost carrier based at the Denver International Airport. The airline serves over 60 destinations in the US, Mexico and Canada, with the majority of services in the western US. Frontier Airlines offers all passengers the same class of top-quality service. All passengers flying with Frontier Airlines receive optional in-seat satellite television service, all-leather seating and a variety of beverage and snack services, including cocktails, wines and beer as well as complementary soda, juices, coffee, tea and snacks depending on destination and duration of flight.

Passengers enrolling in EarlyReturns, Frontier Airlines frequent flier program, enjoy membership at three levels and a variety of benefits at each tier including mileage accrual, priority ticketing and boarding. With free DIRECTV service, you can enjoy watching your favorite television programs and feature films while sipping a complementary in-flight alcoholic beverage!