It is recommended that passengers arrive at least two hours before their flight to ensure ample time for parking, check-in, and security screening. Frontier encourages travelers to check in online or via the mobile app to save time at the airport. If you have checked baggage, head directly to the bag drop counter after arriving at Terminal 5. https://airlinesofficesworld.com/frontier-airlines-lax-terminal-los-angeles-international-airport/