There are several ways how you can travel to Wroclaw. The easiest one would be by plane. Wroclaw has an airport with several international connections, you can book a flight from Frankfurt to Wroclaw, but it is quite expensive. Ticket should be around 200€ or even more.
The cheapest way is by bus. I took Flixbus from Mannheim to Wroclaw, it takes around 13 hours and it costs between 25€ and 40€. I do admit that 13 hours sounds like a very long travel but you have WiFi, you can charge your phone or you can just sleep during the bus-ride, so it is not that bad. I had 3 different connections to choose from, therefore I took one which started quite late at around 21:00 (but well, you can sleep!).
The university provides accommodation for a limited number of erasmus students, but the capacity is not enough for all. There are 2 dormitories, they are right near the campus. In the dormitory you have no single rooms, just rooms for 2 or 3 people. In the first dormitory you have rooms for 2 or 3 people. You share one bathroom with 2 rooms and each floor has one kitchen. The rent is about 100-120€ per month (or 400-480 PLN). The second dormitory only has double rooms, each room has its own bathroom and small kitchen. The rent is between 120€ and 140€. During the registration process you can mark an option to apply for the dormitory. During my first stay I did not get a place in the dormitory, I knew some Germans who got a place, but the majority had to find something on their own. The university does not help you to find a flat on your own. So you should have a Plan B.
As I mentioned before, I didnt get a place in the dormitory so I had to find a flat on my own. I found a house called Windom (www.windom.pl) which is a home for mostly erasmus students. The house has 8 rooms for 9 people (7 single rooms, one double room), 2 bathrooms, 1 kitchen, 1 room for the washing machine. The house was located around 15 minutes away (by bus) from the university. The rent depends on which room you have, my single room was around 200€ including the bills, which I think is pretty good. I stayed there during my bachelor and my master erasmus semester and I can highly recommend it. You will live with different nationalities, in my case people from Italy, Belgium, Mexico, Spain, Poland and Czech Republic – and that intercultural experience is awesome! You also are able to find friends easily this way.
Another way to find a flat is by checking facebook groups or websites, there are several groups on Facebook with names like “flats in wroclaws”, “wroclaws expats..” and so on. (Or you could check out the ERFAHRUNGSBERICHTE from previous students to find out how they acquired a flat.. 😉
For public transport you can buy a student ticket as soon as you are enrolled at the university. A semster ticket (valid for all busses and tram lines) costs around 50€ for 5 months – very cheap! In general the public transport system is pretty good (in my opinion way better than in Mannheim).
In your first week you will have the Orientation Days, which is organized by the Erasmus Student Network (or just ESN). From Tuesday to Sunday we had events every day, it was a lot of fun and if you come to Wroclaw and the UE you should never miss the Orientation Days!