The Spireites enter the FA Cup for this season at Colchester United on Saturday, and away fans have until 5pm tonight to get cheaper advanced tickets.
Fans unable to buy today are able to buy on the day in Essex, but at higher prices.
Prices for the game at the Weston Homes Community Stadium are as follows, with 294 tickets received by the Proact:
Adults: £16.50 £20
Concessions: £11 £13
Aged 18-21: £13 £16
Under 18s: £11 £13
Under 14s: £5 £6
Under 11s: £3 £4
There are also a small number of seats available for the True Blue Travel coaches, which cost £25/15 for this game, with a departure time of 9:55am.