I told him good night, come back any time, and have a safe trip home.

我祝他晚安、回家一路平安，并告诉他可以随时回来。

《柯林斯英汉双解大词典》

Douglas: Have a safe trip home.

道格拉斯：祝你们归程一路平安。

youdao

Well, have a safe trip, then!

祝你一路平安喽！

youdao

OK, have a safe trip.

ECONOMIST: Kith and kin get closer, with consequences for strangers

Okay, have a safe trip.

NPR: The Intersection of Cynicism and Modern Politics

"Parents have signed a form to allow their kids to go to a field trip and they have made sure to choose the right, safe toy for their children, " says Harel.

CNN: Most older kids surf unsupervised