plane-mate

Someone with whom one shares a plane ride, especially a seatmate.

Japanese Meaning

飛行機に一緒に乗る人、特に隣の席に座る乗客 / 隣席の同乗者

My plane-mate and I compared playlists during the long flight.

長いフライトで隣席の乗客とプレイリストを比べ合いました。

Sense（1）

Someone with whom one shares a plane ride, especially a seatmate.

plane-mates

（ plural ）