They will be available before Wednesday night's Johnstone's Paint Trophy match against Bristol City, from 10am to 4pm on Thursday and from 10am to 1pm on Friday.
Supporters can also purchase tickets at the New Meadow on the day of the game.
Prices are £20 for adults, £15 for seniors (65+), £14 for students (with valid NUS card), £12 for juniors (12-16), £5 for juniors (11 and under).
There are also family tickets available: one adult and one 12-16-year-old (£24), one adult and one 11 and under (£22), additional juniors 12-16 (£4) and additional juniors 11 and under (£2).
Away travel spaces are limited, but there are still some seats available for the official supporters' coach, which departs Whaddon Road at 11.15am.
Prices are £12 for adults and £10 for concessions (members) and £14 for adults and £12 for concessions (non members).
Match and travel tickets for the trips to Cambridge United (Tuesday, October 21) and Plymouth Argyle (Saturday, October 25) are also on sale now.
The supporters' coach will depart at 2.45pm for Cambridge, with prices £16 for adults and £14 for concessions (members) and £18 for adults and £16 for concessions (non members).
The coach will depart at 10am for Plymouth, with prices £15 for adults and £13 for concessions (members) and £17 for adults and £15 for concessions (non members).
For any ticket enquiries, call the Robins' ticket office on 01242 588117 or tweet @CTFCOfficial and we will respond as soon as possible.