In a statement on Monday (15 August), the airport said after consultation with airlines its current limitation of 100,000 daily departing passengers would run until 29 October.
In response, BTA chief executive Clive Wratten said the decision did not have the "best interest of travellers at its heart".
"It compounds the misery faced by many leisure travellers and heaps pain on British businesses trying to get back to international work," he added.
