Passengers at some of major UK airports are being warned to arrive as much as four hours before the flight is due to take off. Manchester Airport in particular has been hit by staffing issues, with a string of measures being brought in to ease the disruption, which has led to flight cancellations and chaos in terminals.
The city's mayor, Andy Burnham, said some airlines have even told passengers to drop off their bags the night before their flight to avoid long queues.
People are also being urged to arrive three or hours ahead of take off, with extra police presence stationed at the airport.