Over 900 flights were grounded at London Heathrow and Gatwick airports on June 30, 2026. These major UK airports faced significant operational disruptions as a result of the grounding.
Severe thunderstorms, marked by violent weather conditions, were the primary cause behind the flight groundings and delays. The intense summer storm conditions impacted airport operations throughout the day.
Thousands of passengers were affected, with many encountering cancellations and delays. The disruptions led to major interruptions in travel plans, significantly impacting passenger schedules at both Heathrow and Gatwick.
