Delta chose Amazon Leo for an initial 500 aircraft from 2028, free for SkyMiles members. Until then, Delta Sync Wi-Fi runs on Viasat and Hughes.
Amazon Leo (LEO satellites) from 2028; free Viasat/Hughes-powered Delta Sync Wi-Fi for SkyMiles members meanwhile
Delta signed with Amazon Leo (Amazon's low-Earth-orbit constellation, formerly Project Kuiper) rather than Starlink, with an initial installation on 500 aircraft beginning in 2028.
Leo-powered in-flight Wi-Fi will remain free for all Delta SkyMiles members.
Until Leo arrives, Delta's existing free Wi-Fi (Delta Sync, free for SkyMiles members) continues on Viasat and Hughes satellite service across most of the mainline fleet.