The month in summary
During July 2026, we logged 61 cancelled flights at London Heathrow Airport (LHR) — 31 departures and 30 arrivals. The airline most affected was British Airways with 56 cancellations. The route seeing the most disruption was New York John F. Kennedy (JFK). The single worst day was Sat 18 Jul with 11 cancellations.
Most affected airlines
Most affected routes
Worst days of the month
On-time performance
On-time performance based on 6 days of tracked data this month.
Was your flight cancelled?
If your flight departed from or arrived at a UK airport and was cancelled, you may be entitled to a refund or re-routing, and in some cases compensation under UK261 rules — particularly if you were given less than 14 days' notice and the cancellation was within the airline's control. Always check directly with your airline first.
Figures are compiled from live flight status data captured throughout each day. Coverage may vary and some cancellations could be missed; treat these numbers as an indicative guide, not an official record.