Severe thunderstorms that struck the London area on June 29, 2026, led to widespread flight cancellations and delays at London Heathrow Airport. The adverse weather also impacted operations at nearby Gatwick Airport, disrupting scheduled flights throughout the day.
As a result of the storm-related interruptions, approximately 40,000 passengers were left stranded at Heathrow and Gatwick. Multiple airlines operating at these airports faced significant operational challenges due to the weather conditions.
