The information about transport from the airport Kraków BALICE to the city center could be found here: http://www.krakowairport.pl/en/faq,c145/access-to-the-airport-city-centre,c149/
Transport from the Airport:
a. It could be organized with Hotel where you stay
b. Use official taxi of Krakow Airport
c. Travel by public transport
Krakow Airport is served by two regular bus lines: 208 and 252 and one night line: 902
These are AGGLOMERATION BUS LINES. Current departures of the city buses are presented on the screen located near information desk in the main hall. Prices ranged from 4 PLN (about 1 Euro).
Please, check current schedules when planning your trip from/to the airport.
Tickets can be purchased from: the ticket machine at the passenger terminal, arrivals hall, level O or the ticket machine at the bus stop (cash or with credit/debit card) or the authorized ticket machines found on 292 line buses (in cash only – coins only), the bus driver (single tickers only, payment in cast, the exact amount of money).
Note the ticket must be validated when getting on the bus.
You can also use a city train, which takes you to the Krakow Main Station. From Krakow Main Station you can reach all the main location in Krakow. Trains operate between 5 am and 12 pm. You may find a schedule and buy a ticket here: https://malopolskiekoleje.pl/
Information about Krakow public transport you may find at: http://www.mpk.krakow.pl/en/.
All the meeting places are located near the Main Market Square and you may get to them on foot.