I think bmibaby have stopped all their flights to Ibiza.

If you can make your way over to Leeds Bradford then Jet2 have flights to Ibiza http://www.jet2.com

The following all do Manchester flights Rosie

http://www.firstchoice.co.uk/flights/

http://www.thomsonflights.com

http://www.flightline.co.uk

I always fly to Ibiza with bmi as me and my husband travel back and to many times a year - but I was horrified this year when I went to book all my flights - that they were not going - so I rang them and they said that there were problems with the terminal in Ibiza and they were not going this year - it has been much more difficult as BMI flew everyday and a fraction of the price of other airlines..........