
On June 29, 2026, violent summer thunderstorms resulted in substantial travel disruption at London Heathrow and Gatwick airports. These intense weather conditions led to the grounding of over 900 flights, severely affecting the operations at both major London airports.
The thunderstorms also caused widespread flight cancellations and delays, impacting thousands of passengers planning travel through Heathrow and Gatwick. Airport operations were disrupted throughout the day due to the severe weather.







