United Airlines is a founding member of Star Alliance network. Mileage Plus is the frequent flyer program of United Airlines. You may book United Airlines Tickets Reservations with the help of United Airlines Flight Schedule available online.
To contact United Airlines customers you can dial the below mentioned phone numbers.
United Reservations at 1-800-UNITED-1 (1-800-864-8331)
Ted Reservations at 1-800-CALL-TED (1-800-225-5833)
Available 24 hours a day, 7 days a week.