United Airlines main customer service number is 1-800- United Airlines or ???? 1 888447-6313 ???? [US- United Airlines] or +1888((447))6313 [UK- United Airlines] OTA (Live Person), available 24/7. This guide explains copyright United Airlines customer service effectively through phone, chat, and email options, including tips for minimizing wait times. https://sonat.com/@united-airline-customer-service/multiple-ways-to-speak-to-a-human-at-united-airlines-a-step-by-step-guide