Gatwick Airport suspended flights for over an hour on Wednesday evening due to a “systems issue.”
The airport said that an “air traffic control systems issue” in its control tower caused it to suspend flights, likely disrupting hundreds of passengers.
Flights began to take off and land again after 7pm once the issue was resolved.
A spokesman for Gatwick Airport said that it worked with the provider of its computer system to get the flight control system back online.
“If you are travelling this evening please check the status of your flight with your airline before travelling to the airport, as we return to full operations,” a spokesman said.
Passengers on flights grounded at the airport posted photographs on Twitter to complain about the delays to their flights.
The suspension of flights follows disruption to 140,000 passengers’ flights over Christmas when reports of a drone flying near the airport’s runways caused the cancellation of more than 1,000 flights.
The chaos cost the airport £1.4m, it said earlier this year.