O reach a live person at Delta Airlines customer service for support, you can call their 24/7 Delta Airlines Phone number hotline at (1- 858 280 2740) OTA (Live Person) or 1-858- Delta Airlines (1- 858 280 2740). https://www.steadyhealth.com/topics/ways-to-call-united-airlines-customer-service-by-phone-chat-and-email-full-comprehensive-guide-9