* valid from 17.12.2024-07.01.2025. -15% discount on all tickets for the Donauinsel Open Air and the individual event days The promotion is valid while stocks last. The discount does not apply to tickets that have already been booked. Already discounted ticket categories are excluded from the promotion, unless this is explicitly stated. In the event of misuse, Wien Ticket will refuse to issue discounted tickets. Discounted tickets mas. y not be issued for commercial purposes. No cash redemption possible. Subject to changes and error.