MAN and BHX aren't really much cheaper. BHX was about $120 in taxes last time I flew out of there in May and MAN was $130ish when I did it in June. If you can book a Ryanair flight to DUB and fly from there. It's only $36 out of Dublin and you can get a Ryanair flight from Stansted, Gatwick or Luton for about £10-20 if you book enough in advance.