Contrary to LATAM Argentina's cutback in Argentine domestic service, the other LATAM Group carriers are increasing connections between Argentina and neighboring countries, especially from the Argentine "Interior".
Operated by LATAM Brazil with A320's.
* Buenos Aires Ezeiza (EZE) - Salvador de Bahia (SSA) - eff 25Mar18 - 1x weekly
Operated by LATAM Brazil with A320's.
* Tucuman (TUC) - Sao Paulo Guarulhos (GRU) - eff 02Jun18 - 3x/ weekly
Operated by LATAM Brazil with A320's.
* Sao Paulo Guarulhos (GRU) - Cordoba (COR) - Lima (LIM) - eff 04Jul18 - 2x/weekly
Operated by LATAM Brazil with A321's.
* Tucuman (TUC) - Lima (LIM) - eff 06Nov18 - increase to 1x/daily
Operated by LATAM Peru with A319's.
* Salta (SLA) - Lima (LIM) - eff 09Nov18 - increase to 1x/daily
Operated by LATAM Peru with A320's.
Sources:
http://www.sirchandler.com.ar/2017/11/mendoza-y-tucuman-tendran-vuelos-a-san-pablo-de-latam-brasil/
http://www.siscoma.com.ar/online/aviacion/2017/avn171214/avn-171214.html
https://aviacionline.com/2018/03/salta-y-tucuman-tendran-vuelos-diarios-a-lima-desde-noviembre/
http://aeropuertocordoba.blogspot.com.ar/2018/04/novedades-aerocomerciales-en-cordoba_13.html