Hundreds of flights have been delayed or cancelled at Heathrow and Gatwick after an air traffic control issue disrupted operations at UK airports. Passengers are advised to check their flight status and sign up for airline alerts before leaving home.
Heathrow and Gatwick: Check flight status and sign up for alerts
Most disruptions are visible hours in advance through the airline’s app or flight-tracking sites. Catching this early means getting a record of what the airline was telling passengers from the very start, which matters later if the reason given for the delay changes.

