Have a safe flight! (Can you also type it in romaji so I know how to say it, thank u!) は 日本語 で何と言いますか？

質問を翻訳

There is not a Japanese equivalent expression particularly for sending off someone departing by air.The following are the expressions that can be used whatever the transportation is.（じゃあ、）気をつけて。行ってらっしゃい。気をつけて、行ってらっしゃい。