If there are changes in your route, make sure you always have enough time to walk from one platform to the other and never forget the possibility of delay that could make you miss the second train.
When the journey is as long as between Buenos Aires and Salta, you should consider to take a flight to Salta. If you book in advance, low cost airlines can provide flight that will make you save not only time but also money.
What are the departure and arrival stations in Buenos Aires and Salta?
The trains to Salta will leave from Buenos Aires (Retiro Cap.fed - Argentina) and will arrive at Salta (Salta - Argentina).
What time do the trains to Salta leave and how long is the journey?
The average duration of the journey is 19 hours and 25 minutes, but the fastest connections take you to Salta in 18 hours and 25 minutes. The first train leaves from Buenos Aires at 18:12, while the last one leaves at 19:12.