ARGENTINA AIRPORTS:

Buenos Aires is most likely to be your main gateaway to/from Argentina.
Ezeiza Airport - Aeropuerto Internacional Ministro Pistarini - it's about 45 minutes bus or cab ride from downtown Buenos Aires - which receives nearly all international flights except for flights from Santiago, Chile to Mendoza or Córdoba.

Aeropuertos Argentina 2000 is the place where to find online information regarding Argentina airports and flights in real time (in Spanish only).

Argentina Airports

Bariloche (code BRC; 02944-422767)
Córdoba (code COR; 0351-475-0392)
El Calafate (code ECA; 02902-491-220/30)
Jujuy (code JUJ; 0388-491-1102)
Mendoza (code MDZ; 0261-448-2603)
Puerto Iguazú (code IGR; 03757-420595)
Río Gallegos (code RGL; 02966-442340/4)
Rosario (code ROS; 0341-451-2997)
Salta (code SLA; 0387-424-2904)
San Juan (code UAQ; 0264-425-4133)
Tucumán (code TUC; 0381-426-4906)
Ushuaia (code USH; 0291-424422)

Argentina has direct flights between countries including North America, the UK, Europe, Australia, New Zealand, Japan, Italy, Spain and South Africa, and from all South American countries except the Guianas.

Alternatively, you can fly to a neighboring country, such as Chile or Brazil, and continue overland to Argentina.

Aerolineas Argentinas is the main national carrier ((code ARG; 0810-222-86527;)
Other airlines to/from Argentina include (all telephone numbers listed here are their numbers in Argentina, calling from Buenos Aires. Some Toll Free number are listed as well)...

AeroSur (code ASU; 011-4516-0999 website: www.aerosur.com)
Air Canada (code ACA; 011- 4327-3640/44 website: www.aircanada.ca)
Air France (code AFR; 011-4317-4700/11/22 website: www.airfrance.com)
Alitalia (code AZA; 0810-7..., 011-4310-9970 website: www.alitalia.com)
American Airlines (code AAL; 011-4318-1111 website: www.aa.com)
Avianca (code AVA; 011-4322-2731 website:www.avianca.com)
British Airways (code BA; 0800-666-1459 website: www.britishairways.com)
Continental (code COA; 0800-333-0425 website: www.continental.com)
Copa (code CMP; 0810-222-2672 wbsite: www.copaair.com)
Delta (code DAL; 0800-666-0133 website: www.delta.com)
Gol (code GLO; 0810-266-3232 website: www.voegol.com.br)
KLM (code KLM; 0800-2..., 011-4326-8422 website: www.klm.com)
LAN Airlines (code LAN; 011-4378-2222 website:www.lan.com)
Líneas Aéreas del Estado (LADE) (code LDE; 081..., 011-5129-9000 website: www.lade.com.ar)
Lloyd Aéreo Boliviano (code LAB; 011-4323-1900/05 website: www.labairlines.com)
Lufthansa (code DLH; 011-4319-0600 website: www.lufthansa.com)
Pluna (code PUA; 011-4120-0530 website: www.pluna.com.uy)
Qantas Airways (code QFA; 011-4144-5800 website: www.qantas.com)
TACA (code TAI; 0810-333-8222 website: www.taca.com)
United Airlines (code UAL; 0810-777-8648 website: www.united.com.ar)
Varig (code VRG; 0810-266-6874 website: www.varig.com.br)