Traveling to Buenos Aires is easy as there are plenty of flights available from all of the worlds major cities.

You will have to arrange your own transportation from your home country. Buying Airpass Visit Argentina in your own country, you will obtain more economical prices for flights within Argentina.

Here there is a list of student and discount travel services.

AESU
Council Travel
Expedia
Last Minute
STA Travel
Student Universe
Travelcraft USA
Travelocity