Airports:

Airport Mannheim (distance approx. 15 km)
Tramline 5 to Heidelberg Hauptbahnhof

Frankfurt Airport (distance approx. 80 km)
By Shuttle Service:
Airport Shuttle Service TLS to the Heidelberg Hauptbahnhof
Or Lufthansa Airport Bus, to the Crowne Plaza Hotel Heidelberg City Centre.
Journey time approx. 60 minutes.
By Train:
In the proximity of terminal 1, there is a railroad station where trails of Deutsche Bahn depart to Mannheim Hauptbahnhof. From there you have to change trains to Heidelberg Hauptbahnhof. The train connections can be looked up at here.
Journey time approx. 60 minutes.

Baden-Airpark Flughafen Karlsruhe/Baden-Baden (distance approx. 90 km)
By Shuttle Service:
Baden-Airpark-Express Shuttlebus brings you dircetly to the Heidelberg
Journey time approx 70 minutes

Flughafen Stuttgart (distance approx. 120 km)
By Train:
From the airport with the tram to Stuttgart Hauptbahnhof. From the Hauptbahnhof with ICE directly to the Heidelberg Hauptbahnhof. You can have a look for the exact connections here.
Journey time approx. 80 minutes.

Frankfurt Hahn Airport (distance approx. 150 km)
By Shuttle Service:
Baden-Airpark-Express Shuttlebus brings you dircetly to the Heidelberg
(The schedule is online from March on)

From Heidelberg Hauptbahnhof to the Conference Venue „Kongresshaus Stadthalle Heidelberg“
You can get to the conference venue by bus or taxi in ca 15 minutes (distance approx. 2,5km). The bus line 31, 32 and 35 drive directly to the venue (bus stop “Kongresshaus”)

Heidelberg taxi:
„taxi zentrale heidelberg“: Tel. 0049 6221 30 20 30