Argentina went into quarantine related to COVID-19 on 20Mar20 resulting in the suspension of all regularly scheduled domestic and international flights. While there have been many "special" flights operated worldwide by both Argentine and foreign airlines, mostly to repatriate Argentines stranded overseas and foreigners marooned in Argentina, these flights have typically not been available to the general public. They have usually been approved by the various governments only a few at a time, typically with just a couple of weeks' notice.
However, a first step back to regularly-scheduled service took place on Thursday, 22Oct20 when Aerolineas Argentinas operated four domestic flights from Buenos Aires Ezeiza (EZE) to Jujuy (JUJ), Mendoza (MDZ), Tucuman (TUC) and Ushuaia (USH). This was followed on Friday, 23Oct20 with service from EZE to Cordoba (COR), Neuquen (NQN), Posadas (PSS), Resistencia (RES) and Salta (SLA).
The flights require passengers to apply for government authorization online but the permissions appear to be more like registrations rather than a process that requires an approval.
The flights are being operated out of Buenos Aires Ezeiza (EZE) and not Buenos Aires Aeroparque (AEP) because the latter airport's runway is being widened by 20 meters (65 ft.) and extended by 615 meters (2,000 ft.) with the facility expected to reopen in February 2021.
More destinations are expected to be added from EZE in the coming weeks.