All other times: children's discount (6 to 15 years) 0.90 Euro when bought ahead of time at tobacconists or vending machines in underground stations; or 1,10 Euro, once on board.
ticket for 4 individual segments: 3,60 Euro
2 trips: 1,80 Euro
Information: phone 7909-105

School Vacations in Vienna 2009/2010:

Christmas holidays 24.12.09-6.1.2010
Half-term break 30.1.2010-7.2.2010
Easter holidays 27.3.-6.4.2010
Whitsun holidays 22.5.-25.5.2010
Summer holidays 3.7.-5.9.2010