Here are a few suggestions for your next trip from Warszawa

In 2 hours, you can reach Łódź.

In 3 hours, you can reach Krakow.

In 5 hours, you can reach Berlin, Ostrava.

In 7 hours, you can reach Brno, Kaunas.

In 8 hours, you can reach Wien, Prag, Vilnius, Bratislava, Hamburg.

In 9 hours, you can reach Košice.

In 10+ hours, you can reach Rom, Paris, Bukarest, Budapest, Stockholm, Köpenhamn, Bryssel, Amsterdam, Zagreb, Zürich...