How to say “Have a good trip” in Greek

✈️
Καλό ταξίδι ka-LO tak-SEE-thee

Have a good trip

“Καλό ταξίδι και καλή διαμονή!”

Have a good trip and a good stay!

This word doesn't change form the way verbs, nouns, and adjectives do — what you see above is its only form.