| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | New York City | MLS | 10 | 0 | 1 | 2 | 0 | 7.1 |
| 2025 | New York City | MLS | 24 | 0 | 0 | 7 | 0 | 6.9 |
| 2024/2025 | St. Liege | Jupiler Pro League | 25 | 0 | 1 | 5 | 0 | 6.8 |
| 2023/2024 | St. Liege | Jupiler Pro League | 23 | 1 | 0 | 4 | 0 | – |
| 2022/2023 | Melbourne City | A-League | 27 | 4 | 3 | 6 | 1 | 7.2 |
| 2021/2022 | Melbourne City | A-League | 21 | 0 | 2 | 6 | 0 | 7.2 |
| 2020/2021 | Melbourne City | A-League | 13 | 0 | 1 | 5 | 0 | 7.0 |
| 2019/2020 | Brisbane Roar | A-League | 16 | 0 | 1 | 3 | 0 | 7.0 |
| 2018/2019 | Central Coast Mariners | A-League | 23 | 4 | 0 | 11 | 1 | 6.6 |
| 2017/2018 | Fleetwood | League One | 21 | 1 | 0 | 3 | 1 | – |
| 2016/2017 | Oldham | League One | 15 | 0 | 0 | 2 | 0 | – |
| 2016/2017 | Burnley | Premier League | 3 | 0 | 0 | 0 | 0 | 6.5 |
| Total | 221 | 10 | 9 | 54 | 3 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | St. Liege | New York City | Transfer | |
| 07 ene 2023 | Melbourne City | St. Liege | Free agent | |
| 09 sept 2020 | Burnley | Melbourne City | Free agent | |
| - | Brisbane Roar | Burnley | Return from loan | |
| 07 ene 2019 | Burnley | Brisbane Roar | Loan | |
| - | Central Coast Mariners | Burnley | Return from loan | |
| - | Burnley | Central Coast Mariners | Loan | |
| 01 feb 2018 | Fleetwood | Burnley | Return from loan | |
| 08 ene 2017 | Burnley | Fleetwood | Loan | |
| - | Oldham | Burnley | Return from loan | |
| - | Burnley | Oldham | Loan |
A. O'Neill career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.