Delta's 737-800 are identified as 73Y or 73H and may be displayed as such on booking itineraries or schedules.
Aircraft identified as 73H feature personal Audio Video on Demand entertainment and USB power at every seat.
Aircraft identified as 73Y only feature power ports in First Class in addition to overhead television screens in both cabins. Delta is in the process of converting all 73Y aircraft to 73H configuration however both types feature inflight Wi-Fi.
