More than 900 flights were grounded on June 30, 2026, at London Heathrow and Gatwick airports as violent thunderstorms swept across the region. The severe weather conditions prompted widespread flight disruptions throughout the day.
These disruptions impacted both inbound and outbound flights at the two major London airports, causing significant interruptions for thousands of travelers. Many flights faced cancellations and delays as operations were suspended in response to the storm.
