To watch the plane’s built-in In-Flight Entertainment (IFE) using wireless headphones like AirPods, you typically need a Bluetooth Transmitter (such as an AirFly). Most older aircraft have a 3.5mm or two-prong headphone jack and do not support direct Bluetooth pairing. You plug the transmitter into the jack, put it in pairing mode, and then connect your headphones to the transmitter. However, in 2026, many newer aircraft (like United's updated A321neos or Delta's A321ceos) feature native Bluetooth pairing built directly into the seat-back screen. On these planes, you simply tap the Bluetooth icon on the screen, put your headphones in pairing mode, and connect without any extra hardware. If you are watching movies on your own device (iPad or phone), you can simply connect your wireless headphones as usual. It is always a good idea to bring a "wired" backup pair, as Bluetooth can sometimes experience lag or interference in a crowded cabin with hundreds of other wireless signals.