easyJet has grounded its entire fleet of planes and said it cannot give a date for when they will restart.
The budget airline said it had made the move due to the “unprecedented travel restrictions” imposed by governments globally due to the virus pandemic.
It had already cancelled most services but had been running rescue flights to repatriate Britons stranded abroad.
“We will continue to work with government bodies to operate additional rescue flights as requested,” it said.
easyJet has flown 650 rescue flights so far taking 45,000 people home.
Its cabin crew would be furloughed, with staff paid 80% of their wage from April 1 through the government’s job retention scheme.
Passengers with cancelled flights are entitled to a full refund to the original form of payment within seven days under EU air passengers’ rights rules.