What Terminal is Frontier in Las Vegas At McCarran International Airport (LAS) in Las Vegas, Terminal 3 is the base of operations for Frontier Airlines. Frontier Airlines is one of many airlines that use Terminal 3, popularly referred to as the "E Gates," as their home base. There are many amenities available at the terminal, including eateries, stores, and passenger services. Passengers should go to Terminal 3 in Las Vegas to check in, go through security and board their Frontier Airlines flight. Always check your boarding pass or call Frontier Airlines to get the most recent gate and terminal details for your particular travel. |