Wrocław is served by Wrocław–Copernicus Airport (WRO). The airlines that fly into the city include Lufthansa, SAS Scandinavian Airlines and Poland's national carrier LOT together with its daughter company company Eurolot. Additional low cost airlines flying to and from Wrocław include Germanwings, Ryanair and WizzAir. Domestic flights connect Wrocław with Warsaw, Gdańsk and Lublin.
A bus 406 operates from the airport terminal building to central Wrocław between 5 AM and 11 PM every 20 minutes. There is also a night bus 249 available.
Wrocław Główny, the city's main train station, serves as a major hub in the Polish rail network, with many daily trains arriving from and departing to all major Polish cities. There are about 10 daily departures to Warsaw. Travel time varies from five hours by a InterCity train and up to almost seven hours with a TLK (fast) train. Many trains to Poznań also originate here, from where travel to other major cities in throughout Poland and Central Europe. Wrocław Główny is also a major departure and arrival point for smaller cities and towns throughout Lower Silesia.
Wrocław is a stop on the Eurolines international coach network. All international and national buses stop at the PKS Centrum station which is located directly behind the main train station. The domestic carrier PolskiBus operates routes to Berlin, Katowice, Krakow, Poznan, Prague and Warsaw. Tickets are only available online yet traveling with the company is comfortable. The uses are brand new and free WiFi is available on-board. Tickets are cheap when bought in advance. One-way tickets are available from 1 zł (plus 1 for reservation).
There are many fast and comfortable buses to Kraków run by Link-bus with online prices starting from 15 zł (up to 40 zł when you buy last minute).
Another company that rides to Kraków and back (with a stop in Katowice) is Lajkonik. There are three buses every day in each direction. A one-way ticket is 43 zł (and there are some small discounts for students).
Wrocław is located next to the A4 motorway (E40), Poland's main southern car artery. The A4 motorway links the metropolis to further cities to the west, including Dresden across the border, as well as Opole, Katowice, Kraków and Rzeszów to the east. The A8 motorway (E67) acts as a western bypass of Wrocław, continued onwards by the S8 expressway which connects the city to Łódź and Warsaw. The partially-completed S5 expressway will connect the city to Poznań by 2020. From the south, Wrocław is accessed by DK8, a slow national road that leads to the Czech Republic.
You can also plan your trip with application wroclaw.jakdojade.pl
Wroclaw has very good transportation system operating 24 hours per day - the whole week (trams and buss). The tickets may be bought at the kiosks or at the ticket machines at the stops. You may get also the URBAN Card for long-term and buy your tickets electronically
Single ride ticket : 3.00 PLN (Reduced 1.50 PLN)
30-Min ticket : 3.00 PLN (Reduced 1.50 PLN)
60-Min ticket : 4.40 PLN (Reduced 2.20 PLN)
90-Min ticket : 6.00 PLN (Reduced 3.00 PLN)
30-Day (all lines) : 90.00 PLN (Reduced 45.00 PLN)
Semestral 4-month : 300.00 PLN (Reduced 150.00 PLN)
Semestral 5-month : 370.00 PLN (Reduced 185.00 PLN)
Information source from: wikitravel.org