Delta Airlines' customer service as it can change over time. However, I can guide you on how to obtain the most accurate and up-to-date contact information.

1. Official Website: Visit Delta Airlines' official website at delta.com. Look for the "Contact Us" or "Customer Support" section. There, you will likely find various contact options such as phone numbers, email addresses, and live chat.

2. Booking Confirmation: If you have booked a flight with Delta Airlines, check your booking confirmation email or ticket. Often, the delta customer service phone number is provided in the email or on the ticket itself.

3. Delta Airlines Mobile App: If you have the Delta Airlines mobile app installed on your smartphone, open it and navigate to the "Contact Us" or "Support" section. You should find the customer service phone number listed there.

4. Social Media: Delta Airlines often provides customer support through social media platforms like Twitter or Facebook. Visit their official accounts and send them a direct message or look for any posts mentioning customer service contact details.

5. Online Search: Conduct an online search for "Delta Airlines customer service phone number." Various websites and directories may provide the number, but make sure to verify its authenticity before making any calls.

When contacting customer service, be prepared with relevant information such as your booking details, flight numbers, and any specific inquiries or issues you need assistance with. Keep in mind that wait times can vary, so patience is advised.

Remember, as an AI, my responses are based on general knowledge up until September 2021, and the provided information may have changed. It's always recommended to verify the most recent contact details through official sources.

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