Macduff goes to England because his beloved Scotland is suffering. Everywhere he looks, people are being murdered and nature is rebelling against the leadership of the country. He has suspected all along that Macbeth is responsible for Duncan's death since he does not go to Macbeth's coronation, nor does he attend the banquet the Macbeths host for the nobles. Macduff goes to England to convince Malcolm to return to Scotland with help from English forces to dethrone the evil Macbeth and restore peace and safety once again to the citizens of Scotland.
Macduff pratically deserted his family. Instead of being with them, he went to England to find Malcolm and convince him to come back to Scotland and be the king. While Macduff was in England, Macbeth ordered the assassains to go to Macduff's house and murder him and his family. Macduff wasn't there to protect his family. Macduff's flaw is that he cared more about his job/Duncan's death than his own family. He went to England without telling his family so they were killed.
Macduff learns that Macbeth has murdered Macduff's family.
A number of people including Macduff and Ross.
murder Macduff's family
Macduff and Malcolm plan to overthrow Macbeth in England.
Macduff, he fled to england.
Lennox tells him that Macduff has fled to England.
How does lady macduff reaction the news that macduff fled England
Macbeth is Macduff's enemy. The three witches told Macbeth to beware of Macduff, and Macbeth responded by ordering the deaths of Macduff and all the members of his household. Macduff had already fled to England, however, so Macduff's wife, children, and servants were killed but he wasn't. When Macduff found out, he set out to get revenge.
Macduff teams up with Malcolm to fight Macbeth. In fact they meet in England.
Macduff is in England during Act 3. He has gone there to seek help from King Edward of England to overthrow Macbeth and restore rightful rule to Scotland.
Lennox informs Macbeth that Macduff has fled to England to seek help from King Edward to overthrow him.