For both domestic and certain international flights, Southwest Airlines ONT Terminal is based out of Ontario International Airport's Terminal 2. Other carriers, including Alaska carriers and Delta Air Lines, also share Terminal 2. Numerous amenities are available at this terminal, including as check-in desks, food and drink options, and spacious lounge areas. With quick access to baggage claim, boarding gates, and security, Terminal 2 offers travelers flying with Southwest Airlines a convenient and effective travel experience. This terminal is an important hub at ONT since Southwest is one of the primary carriers there.
