Frontier Airlines operates from Terminal 2 at St. Louis Lambert International Airport , providing passengers with a smooth, convenient, and budget-friendly travel experience. The <a href='https://www.terminalslocation.com/frontier-airlines/frontier-airlines-stl-terminal-st-louis-lambert-international-airport/'>Frontier Airlines STL Terminal</a> is known for its efficient layout, easy navigation, and quick access to check-in counters, security checkpoints, and essential airport amenities. Located in a traveler-friendly zone of STL, Terminal 2 offers a variety of dining options, retail shops, and comfortable waiting areas to enhance the passenger journey.