Frontier Airlines LAS Terminal , At Las Vegas McCarran International Airport (LAS), Frontier Airlines operates from Terminal 1, Concourse D. This vibrant area is designed to make your travel experience smooth and enjoyable. Concourse D offers a range of amenities including dining options, shopping, and comfortable seating. For Frontier Airlines passengers, the check-in counters and gates are conveniently located here. Be sure to arrive early to navigate security and explore the terminal’s offerings. Whether you’re grabbing a bite to eat or shopping for last-minute essentials, Terminal 1, Concourse D has everything you need for a pleasant start to your journey with Frontier Airlines.