United Airline main customer service number is 1-800- United Airline + ║ + ║+1↯( 888↯421)↯6123 ║★ ║ ++ ║ + ║((1↯( 888↯421)↯6123)) ║★ ║ )) (Live Person), where you can reach a live representative 24/7. https://www.mundomapper.net/forums/topic/39331-new-rule-2025-full-list-of-united-airline-customer%C2%AE-contact-numbers-in-usa/