Also, could you give me an idea of the flight times if possible.

Many thanks

Sam

http://www.justyou.co.uk/destinations/europe/southern-europe/italy/magnificent-lake-garda-and-the-verona-opera-festival/departures/ 

In case you have a particular Opera in mind the brochure lists the following:

23 Jun - Tosca

30 Jun - Aida

7 Jul - Tosca

14 Jul - Don Giovanni

25 Aug - Barber of Seville

In terms of flight times, these are provisionally listed as depart Gatwick 08:20 and return Gatwick 13:30. Please note that flights are subject to change and details would be confirmed in your final documents.

Kindest regards,

Julia