The airport is situated about 12 km in the west from a center of Wrocław. To reach the center or Central Bus Station use bus 406, which operates every 20 minutes everyday. Night bus line 249, operates on the line Airport-Jarnołtów, twice during night.
You need 1 hour ticket (4,40 PLN). Buy it in machine on the bus using credit/debit card.
Airport Warsaw or Prague
Find English and German version of the train schedule on the webpage.