From Ezeiza Airport to Buenos Aires, it is approx a 1 hour drive. (Check first if you arrive at Ezeiza or Jorge Newbery, as there are 2 different airports in Buenos Aires). I chose the service of a company called Tienda Leon. Once you exit the glass doors, you turn left and keep walking till you find the stand. Taxis from Tienda Leon to anywhere in Capital Federal: $490 Argentine pesos. Buses from Tienda Leon to Terminal Madero: $140 pesos p/person. From Terminal Madero, you will still need to take a taxi to drive you to Piedras (approx 15 minutes away, maybe less). This company also offers a combined service: bus + taxi shared with other passengers traveling to hotels in Buenos Aires). Note that there will be no subway service after 10:30 pm, so a taxi or bus seems the only option. These are the prices from my last time, but since there is constant inflation in Arg and prices increase quite frequently, fares and prices most often than not go up without prior notice. Also, in Buenos Aires I got to meet Arturo, a private taxi driver who charges less and is totally reliable, but speaks Spanish only. His mobile number is 00541159801071. Maybe you can add him to Whatsapp and ask him beforehand how much he will charge. Perhaps he can wait for you at the airport with your name written down in a cardboard or paper. He drove me and my husband serveral times to the hotel and airport. Hope this helps a lot and feel free to ask me further questions if you need to. Carolina

From Ezeiza Airport to Buenos Aires, it is approx a 1 hour drive. (Check first if you arrive at Ezeiza or Jorge Newbery, as there are 2 different airports in Buenos Aires). I chose the service of a company called Tienda Leon. Once you exit the glass doors, you turn left and keep walking till you find the stand. Taxis from Tienda Leon to anywhere in Capital Federal: $490 Argentine pesos. Buses from Tienda Leon to Terminal Madero: $140 pesos p/person. From Terminal Madero, you will still need to take a taxi to drive you to Piedras (approx 15 minutes away, maybe less). This company also offers a combined service: bus + taxi shared with other passengers traveling to hotels in Buenos Aires). Note that there will be no subway service after 10:30 pm, so a taxi or bus seems the only option. These are the prices from my last time, but since there is constant inflation in Arg and prices increase quite frequently, fares and prices most often than not go up without prior notice. Also, in Buenos Aires I got to meet Arturo, a private taxi driver who charges less and is totally reliable, but speaks Spanish only. His mobile number is 00541159801071. Maybe you can add him to Whatsapp and ask him beforehand how much he will charge. Perhaps he can wait for you at the airport with your name written down in a cardboard or paper. He drove me serveral times to the hotel and airport. Hope this helps a lot and feel free to ask me further questions if you need to.