Heathrow Passenger Numbers Remain Grounded Heathrow Passenger Numbers Remain Grounded When Heathrow reported its 2020 traffic volume figures In January, the airport’s CEO, John Holland-Kaye, reflected on an “incredibly challenging” year for aviation. Holland-Kaye added: “The aviation industry is the cornerstone of the UK economy but is fighting for survival.” As lockdowns continue to be enforced around the …