Argentina has banned all internal and international commercial flights until 1 September because of the deadly coronavirus outbreak.
The authorities said airlines should not be allowed to sell tickets for flights that may not go ahead in the next four months.
Aviation industry groups said thousands of people could lose their jobs.
Argentina closed its borders to non-residents in March, imposing tough quarantine measures.
The country currently has nearly 4,000 confirmed infections, with 192 deaths, according to figures from Johns Hopkins University.