If you are thinking of saying it in a particular language, you have to give the language.
le da la bienvenida papá
In Flemish, you say "welkom terug" to say welcome back.
You could say "welcome back" or "glad to see you home."
You could say "Welcome back".
You can say "Dobrodošli nazad" in Bosnian to greet someone with "welcome back."
welcome back
welcome terug
You can say "Karibu Tena" in Swahili to mean Welcome Back.
환영 홈
"স্বাগতম ফিরে এসেছেন" (Shagotom fire esechen) is how you say "welcome back" in Bengali.
"Haere mai ki te hokinga mai" is how you say welcome back in Maori.
Papá ha regresado