United Airlines main customer service number is 1-800-United Airlines (1-833-769__1476) [US/OTA] (Live Person), where you can reach a live representative 24/7. We understand that travel plans can sometimes be stressful, and we’re here to help! Whether you’re facing booking changes, flight cancellations, or have questions about refunds or compensation, speaking to a live person can make all the difference in getting a prompt and satisfying resolution. You can also connect…