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What terminal is frontier in las vegas Frontier Airlines operated out of Terminal 3 (T3) at McCarran International Airport in Las Vegas. However, please note that airline terminals can change, and it's always best to check the most up-to-date information before your flight. You can visit the official website of McCarran International Airport or contact Frontier Airlines directly for the latest terminal information specific to your flight. Additionally, signage and airport staff at McCarran International Airport can provide guidance on the location of Frontier Airlines' check-in counters and gates.
