Beginning Oct. 1, Delta Air Lines will offer free mobile messaging, providing more customers access to free messaging than any other carrier. The airline will also have the most aircraft enabled with free messaging.
This new, complimentary capability will enable customers to stay fully connected with those on the ground and exchange real time messages in flight with friends, families, colleagues, and clients via iMessage, WhatsApp and Facebook Messenger. You’ll only be able to send and receive text messages, no pictures, videos etc.. Standard SMS will not work.
Free messaging will be available on all Gogo-enabled Delta flights, including all aircraft with two or more cabins. Customers will be able to access free messaging through Delta’s Wi-Fi portal page, airborne.gogoinflight.com. Free mobile messaging will be for text use only and does not support the transfer of photo or video files.
Rad Delta’s announcement here.