People, do NOT use Air Berlin unless you like to gamble.
If nothing special happens, you're lucky and your flight will be ok.
If you're not lucky and Air Berlin decides to change or cancel a flight than you will feel sorry for having chosen Air Berlin. Their service is the WORST I have ever experienced. If you send a mail, it will be answered a week later, if you call you will not get a person who will and can help you and if you call the Customer Relations in Berlin, they say you need to send a fax!!!! By the time you have some contact, your flight will be history.