A:Answer If you can plug in normal 3.5mm headphones (to the plane's system, or a tv, or a Walkman cassette player), you can plug in this device INSTEAD, and then use bluetooth headphones to listen. That is the answer about what should work. The other question I would have is for you is: Does the airline allow use of bluetooth? As I understand, devices are allowed much more liberally these days, but "airplane mode" is still a thing, and that might (probably does) mean nothing that transmits (like bluetooth) unless it is to connect to on-board wifi.
