London’s Heathrow Airport
Heathrow Airport in London is the busiest airport in the United Kingdom and one of the busiest in the world.
Many international passengers go through Heathrow on their way from one destination to another.
Flights depart from Heathrow to destinations around the world every day.
Because Heathrow is so large it can take a long time to go from one end of the airport to another if a passenger needs to reach a connecting flight.
to depart: to leave.