Avianca Argentina's two ATR-72-600's, LV-GUG (c/n 1343) and LV-GUH (c/n 1395), flew from Buenos Aires Aeroparque (AEP) to Jujuy (JUJ) and Salta (SLA) respectively, in the early evening of Wednesday, 12Jul17 somewhat unexpectedly and with no prior announcement. The aircraft operated services that would normally be operated by Andes' MD-80's or its single 737-800.
Three days later on Saturday, 15Jul17, the airline's two ATR-72-600's again flew commercial services in the form of three charter flights from Buenos Aires Aeroparque (AEP) to the small airport of Malargue (LGS) that serves the well-known Argentine ski resort of Las Lenas. The airline reportedly has a contract to operate several more such charters through mid-August.
It was originally announced that Avianca Argentina would start regularly scheduled services on 11Jul17 from Buenos Aires Aeroparque (AEP) to Resistencia (RES) replacing the flights operated by the ex-Macair Jetstreams that it acquired when it bought the small carrier in 2016 but scheduled flights have apparently been delayed until approximately October 2017.