A grass fire broke out at London Heathrow Airport’s (LHR) 27L runway on Aug. 6, 2026, triggering an emergency service’s response and brief flight disruptions. Flight disruptionsThe fire at Heathrow Airport was extinguished and the runway reopened on the same day just after 6:00 p.m. British Airways said on X:“Due to an incident at London Heathrow the airport temporarily had to close one of its runways. Grass fires are caused by grass drying under hot weather, which becomes highly flammable and susceptible to igniting fast-spreading blazes. Were you affected by the fire at Heathrow Airport?