| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Nikki Miller | 19 | Eastkilbride | 4:19.33 |
| 2 | 2 | Maisie Macartney | 18 | Thanet Swim | 4:17.80 |
| 3 | 3 | Rachel Anderson | 17 | Millfield | 4:16.46 |
| 4 | 4 | Holly Hibbott | 20 | Stockport Mo | 4:15.72 |
| 5 | 5 | Leah Crisp | 18 | Co Leeds | 4:16.03 |
| 6 | 6 | Michaella Glenister | 17 | Leic Sharks | 4:17.73 |
| 7 | 7 | Freya Colbert | 15 | Nova Cent'n | 4:18.16 |
| 8 | 8 | Lauren Wetherell | 17 | Ellesmere Co | 4:19.56 |