Congratulations

“I wish you luck!” in Russian (in Ukrainian)

I wish you luck!
Russian pronunciation
Ukrainian pronunciation
Жела́ю Вам уда́чи!
 Бажа́ю Вам у́спіху!

I recommend
Congratulations! Happy birthday! Thank you for your congratulations! Have a nice trip! Merry Christmas! Happy New Year! My best wishes to you! May all your dreams come true! I hope you have a good time! I hope you have a good rest! I wish you happiness! I wish you health! All the best! Here’s to you!