As of July 2015, to contact Delta Airlines call one of their many contact numbers, fill out an online form to receive an email response or tweet them. Delta offers contact numbers for national and international reservations, refund status, disabilities, Skymiles assistance and mobile support.
The number for national reservations is 800-221-1212, and reach customer service at 800-455-2720. To receive an email response, fill out the online form at Delta.com. The online form requires information, such as topic, personal information, details of the flight or reservation and an area to type additional information. To tweet Delta, use a Twitter account and send the message to @DeltaAssist.