About United Airlines Reservations Phone Number 7 years ago ID: #38227 Listed In : Travel & Tourism Chicago, Illinois, United States 800-864-8331 www.ysupportnumber.com/united-airlines-customer-service Business Description United airlines is most favourable airline of USA as daily basis more than 70 percent people choose united service. This airline provides best travelling services to their passengers. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : Airlines phone number united reservations