- Burst water main caused flooding outside Heathrow Terminals 2 and 3 on August 15
- Roads blocked for most of Saturday morning
- No water entered terminal buildings and flights continued on schedule
- All roads reopened by Saturday afternoon
- Public transport recommended to avoid residual road congestion
Heathrow Airport has fully reopened all roads and returned to normal operations after a burst water main caused severe flooding and travel chaos outside Terminals 2 and 3. The incident happened on Saturday, August 15, 2026 during peak summer holiday travel. While roads were blocked for hours, the airport has officially recovered.
A major water pipe burst beneath Inner Ring Road West, with water filling the Central Terminal Area. Roads to Terminals 2 and 3 were completely blocked, with cars and taxis unable to reach them for most of Saturday morning. No water entered the actual terminal buildings and planes continued to fly on schedule, but many passengers missed their departures due to massive traffic gridlock on the surrounding highways.
All roads reopened after maintenance teams isolated the leak and completed urgent road repairs by Saturday afternoon. Heathrow continues to advise passengers to use the Heathrow Express, Elizabeth Line, or Piccadilly Line to avoid remaining road congestion. Travel experts recommend contacting airlines directly to see if passengers qualify for free rebooking if caught in the delays.
