Air New Zealand's in-flight entertainment system runs Linux. Unfortunately the layer of software that Air NZ has deployed on top of Linux is buggy and I noticed at least twice in one 3-hour flight that it crashed, causing Linux to reboot. (This is what led me to discover the systems run Linux.)
Watching Linux boot on the seat-back console screen was fun. And it was nice to see
Tux the Penguin about the airline.
