Supporters can be pay a deposit of £50 to secure their seats in a stadium which has already seen block 20 sold out and surrounding blocks starting to fill up.
The remaining £302 needs to be paid before the end of June otherwise the price goes up to a staggering £460 (dearer than a season ticket at St Andrews or Villa Park for Premiership football).
Providing Under Sevens join the Junior Sky Blues for £8, they can have a free season ticket.
Tickets for the away games at Watford,Millwall and Sunderland are also on sale at the two ticket offices.