There is regularly scheduled bus service every half hour from 0600 - 0045 at EZE and 0830 - 2245 from AEP on modern, comfortable buses operated by Manuel Tienda León between EZE and Aeroparque (Jorge Newbery Airport (AEP)... Buses make one stop at the Terminal Madero at Av. Madero & San Martin in each direction. The trip between airports, including the stop, takes about 1 hour and costs slightly more than USD $7.00...

The Manuel Tienda León desk at EZE is on the left, immediately after leaving the Argentine Immigration and Customs area. You can prepay there using a credit card, if you wish... You'll get receipts and pre-paid vouchers to give to drivers.

Manuel Tienda León has a website, but it's usually down! Thankfully, their bus service is operated much more reliably. By the way, their bus service to downtown hotels is quite good... You leave the big bus at the Madero Terminal and are taken by minibus to your hotel. Bags are well handled by drivers who appreciate a tip of a couple pesos or a dollar a bag. During the transfer at the Madero Terminal bags are guarded by uniformed guards, as are passengers... No concerns about being victimized, it's just Tienda León's mission to provide safe and reliable transportation. I've used their services often and have no complaints...