Pasaré por tu casa cuando entre de vacaciones.

the translation sucks. it implies an end destination, not passing by a place, which changes whether it should be por or para

Over at Tatoeba, which is where the sentences come from, I can see three different translations to English. Which is the one you got?

https://tatoeba.org/eng/sentences/show/1304213

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I think “pasar por” generally means “to pass by” in the sense of “Oh, I was in the neighbourhood”.