To talk to a person at Delta Airlines, you have several options. You can call their customer service hotline "1-888-829-0252(OTA) or 1800 123 6645(Live Person)", engage in live chat on their website, or use email support. The most direct way to speak with a Delta Airlines representative is by calling their customer service line 24 hours a day and seven days a week by calling at "1-888-829-0252(OTA) or 1800 123 6645(Live Person) .