(It is concerned to only an on-site conference)
There is an international airport Balice in Kraków. Balice has direct connections to many cities. The airport is located about 16 km from the city. For details please visit Kraków airport’s website.
It is also possible to reach Kraków by an international train or bus. There is a lot of connections from different European cities.
Some guidance how to reach Kraków and your hotels as well as the Colloquium venue can be downloaded here.