"Wish us a pleasant journey" is a common way to express "祝我们旅途愉快" in Engpsh. This phrase is used as a popte way to express one's hope that the people they are travepng with will have a pleasant and enjoyable trip.
Example:
"Wish us a pleasant journey, we'll see you when we get back"
"Safe travels, and wish us a pleasant journey!"
中文翻译 :
"祝我们旅途愉快，回来后见。"
"一路顺风，祝我们旅途愉快!"