On June 29, 2026, significant weather disturbances led to extensive flight disruptions at London’s Heathrow and Gatwick airports. More than 900 flights were either delayed or cancelled as severe thunderstorms affected operations throughout the day.
These disruptions left approximately 40,000 passengers stranded, with the adverse weather conditions linked to an abrupt shift following the end of the recent UK heatwave. Both airports experienced ongoing delays and cancellations as the storm system impacted flight schedules and ground handling procedures.
