Many People ask What Terminal is Frontier at RDU? Operating out of Raleigh-Durham International Airport’s (RDU) Terminal 2, Frontier Airlines. One of the airport’s two main terminals, Terminal 2, serves both domestic and foreign aircraft. Passengers can access the check-in desks, security screening areas, and flight-specific gates for Frontier Airlines flights at Terminal 2. For the convenience of travellers, this terminal provides a range of services, such as food choices and retail stores. Closer to your departure date, you should double check this information because terminal allocations are subject to change owing to operational needs or changes to the airport. You can find the most up-to-date information about the terminal of your flight by visiting Frontier Airlines’ or RDU Airport’s official websites.