LONDON (Reuters) - British Airways cancelled all flights to New York on Sunday and will suspend most services to and from the U.S. East Coast on Monday as the United States braces for the arrival of Hurricane Sandy. The freak storm, due to come ashore in the United States late on Monday, is forecast to bring thrashing winds, flash flooding and even heavy snowfall. "Hurricane Sandy is causing disruption, flight delays and cancellations throughout the Eastern Seaboard of the U.S.A.," the airline said in a statement on its website. ...