You got three International Airports to get to Santa Fe City. The main entry port to Argentina is Ezeiza International Airport in Buenos Aires city.  Rosario City International Airport  and Córdoba City Airport are two more options to entry to Argentina, with less traffic should also be taken in consideration.
Please check in your nearest Argentinean Consulate for visa requirements to travel to Argentina.

1) BUENOS AIRES (EZEIZA AIRPORT) TO SANTA FE
You can get Santa Fe from Ezeiza Airport by three ways:
A) by domestic flights.  B) by bus.  C) by car rental
Do not hesitate in consulting with the Organizing Committee about the best combination, also to be assessed about special plans by the Workshop to bring delegates to Santa Fe.

Check the official site of Ezeiza Airport for instructions how to leave and reach the terminal at www.aa2000.com.ar.

 

SHUTTLE/BUS AIRPORT SERVICE: Manuel Tienda León

For a domestic flight or bus connection you will either transfer to Aeroparque Airport (“Jorge Newbery”) or get to Retiro Bus Station.
Manuel Tienda León (tel: +54(011) 5480 0196) provides a quite reliable shuttle service from both airports. You will find the Manuel Tienda Leon counter when you get to the Arrivals Hall at Ezeiza Airport, just after collecting your luggage and passing custom services. Buses run every 30 minutes from early in the morning until late in the evening It costs around 45 Argentinean pesos with this door-to-door service included. If you intend to use this service to travel to Santa Fe, you have to book the service well in advance. Check www.tiendaleon.com.ar for details.

OPTION A) DOMESTIC FLIGHTS
Santa Fe can be accessed directly by air from Buenos Aires "Jorge Newbery" Airport, commonly named "Aeroparque". Book your domestic flights from Buenos Aires to Santa Fe, or the round trip, well in advance. There are scheduled flights to Santa Fe from Buenos Aires. Few flights leave daily from Aeroparque to Santa Fe Airport "Sauce Viejo" and flight time is approximately 1 hour. Scheduled Flight Information follows.

From Buenos Aires to Santa Fe

From Santa Fe to Buenos Aires

Aerolíneas Argentinas: www.aerolineas.com.ar
Sol Líneas Aereas: www.sol.com.ar

Airport Contacts:
Ministro Pistarini International Airport (Ezeiza),
Address: Aut. Richieri S/N, CP 1802, Buenos Aires, Argentina,
Information: www.aa2000.com.ar.
Location: Ezeiza, 35 km (21 miles) southwest of Buenos Aires.

Jorge Newbery Airport (Aeroparque),
Address: Av. Sarmiento S/N, Buenos Aires, Argentina,
www.aa2000.com.ar.
Location: 20 minutes from the city centre (the Obelisk).
More information can be found in www.worldairportguide.com

"Islas Malvinas" (Rosario) International Airport: http://www.aeropuertorosario.com/

"Pajas Blancas" (Córdoba) International Airport: http://www.aeropuertosdelmundo.com.ar/americadelsur/argentina/aeropuertos/cordoba.php

Santa Fe (Sauce Viejo), Airport:
Address: Sauce Viejo, Santa Fe.
Location: 17 Km southwest of Santa Fe.
http://www.aeropuertosdelmundo.com.ar/americadelsur/argentina/aeropuertos/santa-fe.php

OPTION B) BY BUS

If you are thinking on travelling by Bus from Buenos Aires to Santa Fe, you may take a bus from Retiro Bus Station which is about 50 minutes from the Ezeiza Airport. The best way to reach the bus terminal is with the transfer service at Manuel Tienda Leon from Ezeiza Airport to Tienda León Terminal, which is located nearby the Retiro Bus Station. Once in the Tienda León Station, take a shuttle service to Retiro Bus Station. Please, check with www.tiendaleon.com.ar. Once in the bus terminal be aware (luggage, hand bags, etc.)  because it is a bussy terminal in a big city.
A great variety of bus companies and routes are available to travel to many destinations of Argentina. Buses offer sleeping beds along with both budget and first class seats. Some seats even fold into beds for passenger comfort. Bus travel in Argentina is considerably more comfortable than plane travel, including meal service and other amenities depending of the destination and cost. Santa Fe city is about six hour journey from Buenos Aires. Bus tickets can be purchased at Retiro Bus Station. Also may be reserved or booked by internet check the companies sites (see below). Additionally, Manuel Tienda Leon offer some transfers directly from Ezeiza Airport that have to be booked with some time in advance. Retiro Bus Terminal address: Av. Antártida Argentina y Calle 10, Capital Federal, www.tebasa.com.ar
Bus Company: FLECHA BUS (Official Workshop bus company),
Address: Terminal Retiro, ticket offices number 141-146, www.flechabus.com.ar

If you are thinking on travelling by Bus from Rosario to Santa Fe, you may take a bus from Rosario Bus Station: http://www.terminalrosario.com.ar/

If you are thinking on travelling by Bus from Córdoba to Santa Fe, you may take a bus from Córdoba Bus Station: http://www.terminalcordoba.com/

More information: Santa Fe Bus Station: http://www.terminalsantafe.com/

OPTION C) BY CAR RENTAL:

Most international rent-a-car companies operates within Argentina (Alamo, Hertz, Avis). You may rent a car at Ezeiza and drop it at the local agency in Santa Fe. Check with their respective web pages www.alamo.co.uk, www.avis.com, www.hertz.com. A word of caution; before leaving Ezeiza Airport make it sure you are familiar with the road to Santa Fe City.