There are several international airports (Sorted from closest from Toruń to ... ):

• Bydgoszcz http://www.plb.pl/index.php?option=com_loty&lang=en
• Gdańsk http://www.airport.gdansk.pl/
• Warszawa http://www.lotnisko-chopina.pl/?lang=en
• Poznań http://www.airport-poznan.com.pl/en/
• Kraków http://www.lotnisko-balice.pl/strona_en.html