"Bezpiecznej podróży!"
Have a nice trip! = Miłej podróży!
boa viagem
Turvallista matkaa!
khair nal jao
"Želáme Vám bezpečnú cestu"
ασφαλές ταξίδι [asfales taxeethi]
eka suraksita yatra hai
Have a safe journey = heb een veilige reis
You can say, "Selamat jalan!"
Slán agus beannacht leat.
Tenga un buen viaje de regreso is have a safe trip home in spanish.
I think the closest would be 'Kia pai te haere' ...