Answer:
I believe
Malcom because
Malcolm flees to England because after his father, King Duncan, is murdered, he is afraid that he's next. He wants to get out of where he lives to be safe. Why does Macduff travel to England? Macduff travels to england because he does not agree with Macbeth's rule/leadership
-Macduff wants Malcolm to “hold fast the mortal sword” and fight Macbeth with him
-Macduff indeed goes to England to gather the support of both the King of England and Malcolm (Duncan's son) in overthrowing Macbeth. So, that is his basic motivation as it relates to the story. As for the structure of the play, Macduff's departure to England is important for two reasons.