Matt
Dont do it mate, FNC is 3-4 hrs flight so @ £109 no chance, get onto trading standards. U could try ringing a broker for an idea on the rough cost, Air Partner are 24/7 so they might be able to help you if you explain. They do a lot of footy charters
Your also having to pay for deadlegs to get to BHX to go BHX-FNC and then BHX back after the flight. £109 would get you somewhere like Beavais France