Video shows the woman telling the Delta Air Lines flight attendant “B****, I’ll knock your ass” after punching her in the face on board a flight in Miami, Florida, that was heading to Atlanta

An unruly passenger punched a flight attendant in the face as she was kicked off a packed flight failing to wear her face mask correctly, witnesses claim.

Footage shows the woman with her face mask pulled down around her neck when she throws a punch at the Delta Air Lines crew member, who is wearing a mask, in the aisle.

The woman then tells the flight attendant: “B****, I’ll knock your ass. You shouldn’t have touched me, you pushed me.” However, video shows the woman getting in the crew member’s face before the punch.

Shocked witnesses begin shouting as passengers and crew rush in to separate the pair, with passengers claiming the traveller refused to wear her mask correctly and then wouldn’t follow any of the in-flight rules.