| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Ballymena | Irish League Cup | 3 | 1 | 0 | 0 | 0 | – |
| 2023/2024 | Institute | Irish Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2023 | Sligo Rovers | FAI Cup | 1 | 0 | 0 | 0 | 1 | – |
| 2022 | Derry City | FAI Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2021 | Derry City | FAI Cup | 2 | 1 | 0 | 0 | 0 | – |
| 2020 | Shamrock Rovers | FAI Cup | 4 | 2 | 0 | 0 | 0 | – |
| 2019 | Shamrock Rovers | FAI Cup | 3 | 0 | 0 | 1 | 0 | – |
| 2018/2019 | Peterborough | EFL Trophy | 2 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Peterborough | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2017/2018 | Sheffield Utd | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.3 |
| 2017/2018 | Sheffield Utd | EFL Cup | 1 | 0 | 0 | 1 | 0 | 6.2 |
| 2014/2015 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2013/2014 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| Total | 22 | 5 | 0 | 2 | 1 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 07 Jan 2024 | Institute | Ballymena | Free agent | |
| - | Sligo Rovers | Institute | Free agent | |
| 01 Jan 2023 | Derry City | Sligo Rovers | Free agent | |
| 01 Jan 2021 | Shamrock Rovers | Derry City | Free agent | |
| - | Sheffield Utd | Shamrock Rovers | Free agent | |
| - | Peterborough | Sheffield Utd | Return from loan | |
| 01 Mar 2019 | Sheffield Utd | Peterborough | Loan | |
| - | Burnley | Sheffield Utd | Free agent | |
| 01 Dec 2017 | Sheffield Utd | Burnley | Return from loan | |
| - | Burnley | Sheffield Utd | Loan | |
| 03 May 2016 | Oldham | Burnley | Return from loan | |
| 10 Feb 2015 | Burnley | Oldham | Loan | |
| 05 Mar 2015 | Rotherham | Burnley | Return from loan | |
| 03 May 2015 | Burnley | Rotherham | Loan | |
| - | Derry City | Burnley | Transfer | |
| 07 Jan 2010 | Celtic | Derry City | Free agent | |
| - | Ayr | Celtic | Return from loan | |
| 03 Jan 2010 | Celtic | Ayr | Loan |
D. Lafferty career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.