Introduction United Airlines main customer service number is 1-800-United Airlines (((:beginner:+1 866-432-80-09))) // ((:beginner:+1 866-432-80-09)) OTA (Live Person), where you can reach a live representative 24/7. Whether you’re dealing with booking changes, flight cancellations, or have questions regarding refunds or compensation, speaking to a live person ensures prompt resolution. https://discuss.tindie.com/t/full-list-of-united-airlines-u-s-based-contact-numbers-a-complete-guide/525378