Not all Delta Airlines flights have in-flight TV or entertainment screens. Most mainline aircraft—such as the A319, A320, A321, 737-800/900ER, 757, 767, A330, and A350—are equipped with seat-back screens offering Delta Studio or the newer Delta Sync system. However, many regional jets operated by Delta Connection, as well as some older or refurbished planes like the 717 and certain 737s, do not have built-in screens. On those flights, passengers can still stream entertainment to their personal devices via onboard Wi-Fi.
