| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Rachel Bethel | 17 | Lisburn IRL | 4:23.19 |
| 1 | 2 | Michaella Glenister | 15 | Co Leicester | 4:22.28 |
| 2 | 3 | Hannah Miley | 28 | Aberdeen Per | 4:19.99 |
| 3 | 4 | Leah Crisp | 16 | Co Leeds | 4:18.84 |
| 4 | 5 | Holly Hibbott | 18 | Stockport Mo | 4:14.28 |
| 5 | 6 | Eleanor Faulkner | 24 | Co Sheffield | 4:14.34 |
| 6 | 7 | Alice Dearing | 20 | Loughboro Un | 4:19.64 |
| 7 | 8 | Maisie Macartney | 16 | Thanet Swim | 4:21.21 |
| 8 | 9 | Phyllida Britton | 20 | Wandsworth | 4:23.03 |
| 9 | 10 | Emily Clarke | 20 | Loughboro Un | 4:23.23 |