As per our experience skyscanner.com has the best offers. There you can choose between many different airlines and a wide range of prices.
Buenos Aires is a very well connected city and there is a lot to see and enjoy here 🙂
We do not recommend to rent a car in Buenos Aires as driving a car there it can be more challenging that in other places in the world, mostly for safety reasons.
We are going to explain you how to use the public transport in Buenos Aires once we are all there and help you with the language.
Most likely we will all together touring around the city and we will use public transport like the subway, bus, train and, if it is necessary, also taxis or “remises”.
For longer distance trips, there is going to be a possibility to rent a larger “combi” or minivan with a driver to transport you all together. Soon we will provide a link and phone number here for all the ones interested in this “combi”/minivan service.