The 2018/19 season was Arsenal’s first without long-time manager Arsene Wenger, and saw them finish 5th in the Premier League with a total of 70 points, although this was only two points behind third place finishers Chelsea so it was tight.
They fared better in the Europa League where they made it to the final, but were ultimately bested, again by Chelsea, in a 4-1 defeat.
Arsenal also participated in the FA Cup, where they made it to the fourth round, and the EFL Cup, which saw them eliminated in the Quarter Finals by Spurs, with top scorer Pierre-Emerick Aubameyang netting 31 times for them across all competitions.
| Date | Competition | Home | HG | AG | Away |
|---|---|---|---|---|---|
| 12/08/2018 | Premier League | Arsenal | 0 | 2 | Manchester City |
| 18/08/2018 | Premier League | Chelsea | 3 | 2 | Arsenal |
| 25/08/2018 | Premier League | Arsenal | 3 | 1 | West Ham |
| 02/09/2018 | Premier League | Cardiff City | 2 | 3 | Arsenal |
| 15/09/2018 | Premier League | Newcastle Utd | 1 | 2 | Arsenal |
| 20/09/2018 | Europa League | Arsenal | 4 | 2 | Vorskla Poltava |
| 23/09/2018 | Premier League | Arsenal | 2 | 0 | Everton |
| 26/09/2018 | EFL Cup | Arsenal | 3 | 1 | Brentford |
| 29/09/2018 | Premier League | Arsenal | 2 | 0 | Watford |
| 04/10/2018 | Europa League | Qarabağ Ağdam | 0 | 3 | Arsenal |
| 07/10/2018 | Premier League | Fulham | 1 | 5 | Arsenal |
| 22/10/2018 | Premier League | Arsenal | 3 | 1 | Leicester City |
| 25/10/2018 | Europa League | Sporting CP | 0 | 1 | Arsenal |
| 28/10/2018 | Premier League | Crystal Palace | 2 | 2 | Arsenal |
| 31/10/2018 | EFL Cup | Arsenal | 2 | 1 | Blackpool |
| 03/11/2018 | Premier League | Arsenal | 1 | 1 | Liverpool |
| 08/11/2018 | Europa League | Arsenal | 0 | 0 | Sporting CP |
| 11/11/2018 | Premier League | Arsenal | 1 | 1 | Wolves |
| 25/11/2018 | Premier League | Bournemouth | 1 | 2 | Arsenal |
| 29/11/2018 | Europa League | Vorskla Poltava | 0 | 3 | Arsenal |
| 02/12/2018 | Premier League | Arsenal | 4 | 2 | Tottenham |
| 05/12/2018 | Premier League | Manchester Utd | 2 | 2 | Arsenal |
| 08/12/2018 | Premier League | Arsenal | 1 | 0 | Huddersfield |
| 13/12/2018 | Europa League | Arsenal | 1 | 0 | Qarabağ Ağdam |
| 16/12/2018 | Premier League | Southampton | 3 | 2 | Arsenal |
| 19/12/2018 | EFL Cup | Arsenal | 0 | 2 | Tottenham |
| 22/12/2018 | Premier League | Arsenal | 3 | 1 | Burnley |
| 26/12/2018 | Premier League | Brighton | 1 | 1 | Arsenal |
| 29/12/2018 | Premier League | Liverpool | 5 | 1 | Arsenal |
| 01/01/2019 | Premier League | Arsenal | 4 | 1 | Fulham |
| 05/01/2019 | FA Cup | Blackpool | 0 | 3 | Arsenal |
| 12/01/2019 | Premier League | West Ham | 1 | 0 | Arsenal |
| 19/01/2019 | Premier League | Arsenal | 2 | 0 | Chelsea |
| 25/01/2019 | FA Cup | Arsenal | 1 | 3 | Manchester Utd |
| 29/01/2019 | Premier League | Arsenal | 2 | 1 | Cardiff City |
| 03/02/2019 | Premier League | Manchester City | 3 | 1 | Arsenal |
| 09/02/2019 | Premier League | Huddersfield | 1 | 2 | Arsenal |
| 14/02/2019 | Europa League | BATE Borisov | 1 | 0 | Arsenal |
| 21/02/2019 | Europa League | Arsenal | 3 | 0 | BATE Borisov |
| 24/02/2019 | Premier League | Arsenal | 2 | 0 | Southampton |
| 27/02/2019 | Premier League | Arsenal | 5 | 1 | Bournemouth |
| 02/03/2019 | Premier League | Tottenham | 1 | 1 | Arsenal |
| 07/03/2019 | Europa League | Rennes | 3 | 1 | Arsenal |
| 10/03/2019 | Premier League | Arsenal | 2 | 0 | Manchester Utd |
| 14/03/2019 | Europa League | Arsenal | 3 | 0 | Rennes |
| 01/04/2019 | Premier League | Arsenal | 2 | 0 | Newcastle Utd |
| 07/04/2019 | Premier League | Everton | 1 | 0 | Arsenal |
| 11/04/2019 | Europa League | Arsenal | 2 | 0 | Napoli |
| 15/04/2019 | Premier League | Watford | 0 | 1 | Arsenal |
| 18/04/2019 | Europa League | Napoli | 0 | 1 | Arsenal |
| 21/04/2019 | Premier League | Arsenal | 2 | 3 | Crystal Palace |
| 24/04/2019 | Premier League | Wolves | 3 | 1 | Arsenal |
| 28/04/2019 | Premier League | Leicester City | 3 | 0 | Arsenal |
| 02/05/2019 | Europa League | Arsenal | 3 | 1 | Valencia |
| 05/05/2019 | Premier League | Arsenal | 1 | 1 | Brighton |
| 09/05/2019 | Europa League | Valencia | 2 | 4 | Arsenal |
| 12/05/2019 | Premier League | Burnley | 1 | 3 | Arsenal |
| 29/05/2019 | Europa League | Chelsea | 4 | 1 | Arsenal |