On June 29, 2026, major US airports including JFK, Boston Logan, San Francisco, and Miami recorded 55 flight cancellations and 638 delays. Flights to multiple international destinations were affected.
Zurich Airport recorded over 400 flight delays and 16 cancellations on June 29, 2026, affecting major European routes. Airlines including Swiss, Lufthansa, KLM, and British Airways were impacted.
Violent thunderstorms on June 29, 2026, prompted the grounding of more than 900 flights at London Heathrow and Gatwick airports. Extensive cancellations and delays affected passengers and airport operations.