American Airlines - 2300 East Airport Drive, Ontario, CA 91761
Alaska Airlines - 2300 East Airport Drive, Ontario, CA 91761 - 1-800-225-2752
Delta Airlines - 2300 East Airport Drive, Ontario, CA 91761
Southwest Airlines - 540 Hellman Road, Building 1, Ontario, CA 91761 - 909-975-3880
United Airlines - 2500 E. Airport Drive, Ontario, CA 91761 - 909-418-2838