To speak to directly at United airlines representative fast, you can follow these steps : Call United customer service hotline at 1-888-356-5123 if you are in the United States or Canada. International customers can find their specific country?s phone number on United website. Use the live chat feature on the company?s website or mobile app. To connect with a live Human At United Airlines Immediately, call their customer hotline at + 1-888-356-5123 (Live Human). For prompt assistance, have your flight PNR number and full details of your issue and ticket ready. This enables the representative to quickly access your booking and provide the best solution.