There are flights to Wroclaw from different cities in the U.S. via different airlines with a connection usually in Paris or Munich.
There also train from several major cities in Europe to Wroclaw.
- Prague–5h 19m
- Berlin–4h 13m
- Dresden–4h 04m
- Warsaw–3h 26m
- Prague–4h 20m
The weather at the end of June varies from 72-52 F
The European Union and Switzerland citizens do not need a visa. Poland is part of the Schengen Agreement. The U.S. passport holders do not need a visa for a short stay (3 months). For other countries, please visit the site: https://travel.state.gov/content/travel/en/international-travel/International-Travel-Country-Information-Pages/Poland.html