As of late February 2026, flight cancellations at London Gatwick (LGW) are primarily driven by the "tail-end" effects of Storm Hernando, which has caused significant operational fragility across the UK aviation network. While the worst of the winds may have passed, the "knock-on" effects are substantial: aircraft and crews were left "out of position" globally, leading to tactical cancellations as airlines like British Airways and easyJet scramble to reset their schedules. Additionally, Gatwick is currently facing "Air Traffic Control (ATC) Flow Management" restrictions. Due to ongoing staffing shortages at National Air Traffic Services (NATS) and the need for safe spacing between flights in turbulent weather, the number of arrivals and departures per hour has been temporarily reduced. This "flow control" means that even if a specific flight's plane is ready, it may be cancelled if the airport cannot accommodate its slot. Travelers are also experiencing delays related to the rollout of the UK's new ETA (Electronic Travel Authorisation) system, which has slightly increased processing times at check-in, further complicating the turnaround of short-haul rotations.