United latest to require negative coronavirus test for flights from London

United on Thursday became the fourth major airline with routes between London and the New York metropolitan area to require passengers show proof they have been tested negative recently for the novel coronavirus. Beginning December 28, passengers flying on United from London's Heathrow Airport to the United States must provide proof of a negative coronavirus test or an antigen test taken within three days of departure, company officials said. United's policy applies to its flights flying from Heathrow to Newark, New Jersey as well as the company's flights to Chicago, San Francisco and Washington, DC. BA, Delta and Virgin Atlantic announced similar requirements for flights from the United Kingdom to New York on Monday.<br/>