Formal:
* शुभ यात्रा (Shubh Yatra) - This is the most common and formal way to wish someone a good trip. It literally translates to "auspicious journey".
* सुखद यात्रा (Sukhad Yatra) - This means "pleasant journey".
Informal:
* मजेदार यात्रा (Majedar Yatra) - This means "enjoyable trip".
* खुश यात्रा (Khush Yatra) - This means "happy journey".
More casual:
* अच्छी यात्रा (Achchhi Yatra) - This means "good trip".
* मस्त यात्रा (Mast Yatra) - This means "fun trip".
You can also add a personal touch by saying:
* आपकी यात्रा मंगलमय हो (Aapki Yatra Mangalmay Ho) - This means "May your journey be prosperous".
* आपकी यात्रा सुरक्षित हो (Aapki Yatra Surakshit Ho) - This means "May your journey be safe".
The best way to choose the right phrase depends on the person you are talking to and the context of the conversation.