Key: Win : Draw : Loss
| Date | Home | Away | Ref | ||
|---|---|---|---|---|---|
| 04/08/2018 | Sunderland | 2 | 1 | Charlton | J Brooks |
| 11/08/2018 | Charlton | 2 | 1 | Shrewsbury | C Hicks |
| 18/08/2018 | Accrington | 1 | 1 | Charlton | R Joyce |
| 21/08/2018 | Charlton | 0 | 1 | Peterboro | J Linington |
| 25/08/2018 | Charlton | 0 | 0 | Fleetwood Town | A Coggins |
| 01/09/2018 | Southend | 1 | 2 | Charlton | B Huxtable |
| 08/09/2018 | Charlton | 3 | 2 | Wycombe | G Salisbury |
| 15/09/2018 | Bradford | 0 | 2 | Charlton | J Simpson |
| 22/09/2018 | Charlton | 2 | 1 | Plymouth | D Whitestone |
| 29/09/2018 | Luton | 2 | 2 | Charlton | A Coggins |
| 02/10/2018 | Scunthorpe | 5 | 3 | Charlton | D Drysdale |
| 06/10/2018 | Charlton | 1 | 2 | Coventry | B Toner |
| 20/10/2018 | Charlton | 2 | 0 | Barnsley | J Linington |
| 23/10/2018 | Charlton | 1 | 1 | Oxford | D Whitestone |
| 27/10/2018 | Rochdale | 1 | 0 | Charlton | A Haines |
| 03/11/2018 | Charlton | 2 | 0 | Doncaster | G Ward |
| 06/11/2018 | Walsall | 0 | 2 | Charlton | T Nield |
| 24/11/2018 | Charlton | 3 | 1 | Bristol Rvs | M Donohue |
| 27/11/2018 | Burton | 1 | 2 | Charlton | R Joyce |
| 08/12/2018 | Blackpool | 2 | 1 | Charlton | T Harrington |
| 11/12/2018 | Portsmouth | 1 | 2 | Charlton | J Brooks |
| 15/12/2018 | Charlton | 2 | 0 | AFC Wimbledon | T Kettle |
| 22/12/2018 | Charlton | 2 | 0 | Gillingham | C Breakspear |
| 26/12/2018 | Coventry | 2 | 1 | Charlton | S Hooper |
| 29/12/2018 | Barnsley | 2 | 1 | Charlton | D Bond |
| 01/01/2019 | Charlton | 2 | 1 | Walsall | R Joyce |
| 05/01/2019 | Charlton | 1 | 1 | Sunderland | S Martin |
| 12/01/2019 | Shrewsbury | 0 | 3 | Charlton | A Backhouse |
| 19/01/2019 | Charlton | 1 | 0 | Accrington | J Busby |
| 26/01/2019 | Peterboro | 0 | 0 | Charlton | D Webb |
| 02/02/2019 | Fleetwood Town | 1 | 0 | Charlton | T Harrington |
| 09/02/2019 | Charlton | 1 | 1 | Southend | S Hooper |
| 16/02/2019 | Charlton | 0 | 0 | Blackpool | K Johnson |
| 23/02/2019 | AFC Wimbledon | 1 | 2 | Charlton | C Kavanagh |
| 02/03/2019 | Doncaster | 1 | 1 | Charlton | B Toner |
| 09/03/2019 | Charlton | 2 | 1 | Portsmouth | R East |
| 12/03/2019 | Charlton | 2 | 1 | Burton | T Bramall |
| 16/03/2019 | Bristol Rvs | 0 | 0 | Charlton | D Whitestone |
| 30/03/2019 | Charlton | 1 | 0 | Bradford | M Coy |
| 06/04/2019 | Plymouth | 0 | 2 | Charlton | C Breakspear |
| 09/04/2019 | Wycombe | 0 | 1 | Charlton | A Coggins |
| 13/04/2019 | Charlton | 3 | 1 | Luton | G Ward |
| 19/04/2019 | Oxford | 2 | 1 | Charlton | D Drysdale |
| 22/04/2019 | Charlton | 4 | 0 | Scunthorpe | B Huxtable |
| 27/04/2019 | Gillingham | 0 | 2 | Charlton | L Swabey |
| 04/05/2019 | Charlton | 4 | 0 | Rochdale | C Breakspear |