On Thursday (20 April), the union confirmed security personnel at the airport will strike for a further eight days in May as part of an ongoing dispute over pay.
In response to the upcoming demonstrations, a Heathrow spokesperson said: "We kept Heathrow running smoothly during the first 10 days of Unite’s failed industrial action, and passengers can have confidence that we will do so again this time.
"We will not let Unite disrupt the flow of visitors to the UK during such an important period for the country."
