Most European airlines (Ryanair, EasyJet, BA, Lufthansa, AirBerlin, Austrian, Alitalia, Norwegian) have daily connections with Cracow. Intercontinental flights usually require a convenient transfer in Warsaw. Detailed information on available flights to Cracow can be found at Cracow Balice Airport (KRK): www.lotnisko-balice.pl
Cracow also has a good connection (approx. 1.5 hours by bus) with the airport in Katowice (KTW), from where Wizzair serve an extensive network of destinations.
GLOSSA will provide on request, the possibility of transfer to and from airports in Cracow (KRK), Katowice (KTW) and Warsaw (WAW).
I had a wonderful time at GLOSSA. The school is a good place to study Polish in Kraków - with small classes, nice teachers and interesting people from all around the world. I hope to come back there some time!