How do you say bon voyage to a woman in french?

Bon Voyage is french. Say "Bon Voyage".

The current phrasing does not make sense in English or in French. One would not say "Safe Travels, our friends" in English. One might say "May you have safe travels, dear friends" which would be translated as "Bon Voyage, chers amis".

Bon voyage a nos ami - in french

safe journeys our friends- in English