Update 24/05/2016: A batch of 64 tickets is now available to purchase from the WordCamp Europe website, hurry though!
WordCamp Europe has been sold out for some time, however there are still tickets being donated or sold, mostly from those who unfortunately cannot make it. A few people who are looking for a ticket have contacted me so I am publishing this post to help them out. If you or anyone you know need a ticket please post in the comments section below. Likewise, those who have extra tickets can jump in and contact those looking for a ticket.
Good luck and see you in Vienna!