Gatwick has released a statement:
“Gatwick’s runway is currently available having reopened at 06:00. A limited number of aircraft are taking off and landing at Gatwick this morning but our departures and arrivals rate is currently very restricted to just a few runway movements every hour so passengers must expect delays and cancellations again today. Gatwick continues to strongly advise passengers to check the status of their flight with their airline before travelling to the airport.
“Overnight we have been able to work with partners, including Government agencies and the Military to put measures in place which have provided the confidence we needed to re-open the runway and ensure the safety of passengers, which remains our priority.
Source: Sky News