Arrivals will be banned and landings will be permitted only in a few exceptions including cargo flights, medical emergencies, and fire service flights, reports Xinhua news agency.
"One variant that arrives without been caught will cause exponential infections", he said.
The cabinet meeting was called for the vote of approval for the establishment of diplomatic ties between Israel and Morocco, as well as to discuss the potential suspension of passenger flights to and from Israel in the face of the new COVID-19 variants. The country's borders have already been largely closed to foreigners during the pandemic times, with only Israeli passport holders being allowed the entry.
The Prime Minister further said that the move was needed also to "ensure the fast advancement" of Israel's large-scale vaccination drive.
Hezi Levy, director-general of Israel's Health Ministry, was asked in an Army Radio interview whether vaccinating teens might pose unforeseen risks - perhaps to their own yet-unborn children. Critics say the government has mishandled the crisis, lacking a clear long-term strategy and allowing politics to cloud its decisions.
The inclusion of late teens is meant "to enable their return (to school) and the orderly holding of exams", the Education Ministry spokeswoman said.
Israel began what has become the world's fastest per capita distribution of vaccines against the new coronavirus on December 19, using the shot developed by the American firm Pfizer Inc. and Germany's BioNTech.
But he said he knew of "no serious morbidity" among Israelis eligible for the vaccination certificate - a document issued by the state a week after the second dose is administered, when Pfizer says the vaccine is 95% effective.