夜や行こう便びんMeaningsNoun1. overnight flight; red-eye flightKanji used夜night行go便convenienceComposed of夜や行こうnight travel; walking around at night; night trainNoun便びんflight (e.g. airline flight); trip (e.g. train trip); sailing (e.g. ferry voyage); service; mail; post; letter; opportunity; chanceNoun