Parecidas pero distintas
U
Las dos palabras se refieren a algo que es normal pero con una estructura diferente.
He's usually late. As usual, he is late.
Up to significa hasta, como máximo, en distancia, dinero, etc.
This restaurant is very expensive. You can spend up to $75 just for the wine.
Until significa hasta, pero en tiempo.
Last night I watched the Oscar ceremony and didn't go to bed until 4 am.
Go along this street until you see the Odeon Cinema and then turn right.
Go along this street up to the Odeon Cinema and then turn right.