Festivals with events currently listed:
| Baltic Sea Festival | Sweden | August 2018 - September 2018 |
| Glyndebourne | United Kingdom | May 2018 - August 2018 |
| Holland Festival | Netherlands | June 2018 - July 2018 |
| Savonlinna Opera Festival | Finland | July 2018 - August 2018 |
There are no events in December 0