United Airlines ® main customer service number is I-800-United Airlines ® || (( +1?888?486?3822) || [US-OTA] , 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. You can also reach out via United Airlines 's live chat... https://www.indiastudychannel.com/forum/187916-full-list-of-united-airlines-customer-contact-numbers-in-the-usa-a-official-2025-guide