He specifically mentions Brazil and India, saying the government has failed to take the appropriate measures to prevent new, highly contagious variants first detected in those countries from entering ours.
The travel ban includes inbound transit passengers with exception of transit flights coming to the UAE and heading to India, the GCAA said in a statement on Thursday.
Heathrow Airport told the BBC that it refused airlines' request for extra flights because it was anxious about long lines at passport control.
From 0400 on Friday many arrivals from India will be refused entry.
British and Irish citizens will have to pay to stay in a United Kingdom government-approved quarantine hotel for 10 days on their return.More news: Premier Ford promising paid sick leave
Four carriers requested to operate an additional eight flights from India as travellers seek to fly before the enforced quarantine comes into effect.
Speaking on BBC Radio 4's World At One programme on Tuesday, Prof Sharon Peacock, head of the COVID-19 Genomics UK Consortium and a member of the Scientific Advisory Group for Emergencies (Sage), said it's "because we know it can partially evade immune response either from natural infection or vaccination".
On the West Coast, three recent flights from India were added to the B.C. Centre for Disease Control's list of flights with possible COVID-19 exposures.
The State Department spokesperson, responding to a question, said Secretary of State, Tony Blinken and External Affairs Minister S Jaishankar discussed the issue during a phone call on Monday.
Looking back a little further, eight of 13 global flights with cases on board which have landed in Vancouver since April 11 have been from India.More news: USA ex-cop Derek Chauvin convicted of George Floyd’s murder
"Whether it's India or any other country, we are committed to doing what we can both at present and going forward to see to it that this virus is brought under control", he said.
The UK.'s red list practically bans entry to passengers travelling in from India.
The Australian Cabinet has made a decision to place restrictions on travel to and from India.
"Travellers from high-risk countries, including India, will be required to have a PCR Covid-19 test 72 hours prior to leaving the last port they are in before travelling to Australia", the report says.More news: PM to front media after new positive border worker case confirmed