United Airlines Customer Service Number 5 years ago ID: #175987 Listed In : Travel & Tourism hawaii 1-888-324-1990 https://www.tecask.com/airlines/united-airlines-customer-service-number Business Description Customer service of United airlines is way too helpful for the users. People can call anytime to manage or cancel their booking. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : Airlines service customer number united