Upvote:1
And here is the answer. @mic was correct:
The fare structure is puzzling: even the shortest bus ride (5 stops) that I took cost 20 pesos and 23 for a 95-stop monstrosity doesn't seem a reasonable difference. It does make the "check in" process a lot more complicated and slower: you need to tell the driver where you are going so he can deduct the correct fare from your card. That can be challenging when you don't speak the language.
Trying to find where the bus stops are and when they come isn't easy. Google Maps seems to be the best shot. Some websites recommend Cuando SUBO but I found it to be very inaccurate and mostly useless. This being said, busses come quite frequently so in general it's ok to just show up and wait.
Upvote:6
The Argentinian government publishes a list of fares for public transport in the Buenos Aires region. Bus fares top out at 23 pesos as of this writing, and subway fares at 30, though, as you note, the rapid inflation in Argentina means that price rises are possible on short notice. There are discounts available if your trip involves more than one form of transport.