Severe summer thunderstorms grounded over 900 flights at London Heathrow and Gatwick airports on June 30, 2026. The violent weather conditions caused widespread disruption to airport operations, resulting in numerous cancellations and delays throughout the day.
Thousands of passengers faced delays or cancellations due to the disrupted schedules, with many becoming stranded at both airports as travel plans were upended. The scale of the disruption significantly affected those attempting to depart or arrive through these major London hubs.
In response, airport authorities urged travelers to verify the status of their flights before traveling to Heathrow or Gatwick, as operations remained
heavily impacted. Updated information was recommended to avoid unnecessary journeys to the airports amid ongoing weather-related operational challenges.
