| Final | |||||
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 1 | Jessica Thomson | 99 | Co Aberdeen | 4:26.44 |
| 2 | 2 | Sophie Smith | 01 | St Thomas | 4:25.87 |
| 3 | 3 | Sophie Millen | 99 | Wycombe Dist | 4:23.63 |
| 4 | 4 | Annalea Davison | 01 | Newcastle | 4:20.20 |
| 5 | 5 | Leah Crisp | 01 | Co Leeds | 4:21.36 |
| 6 | 6 | Maisie Macartney | 01 | Thanet Swim | 4:25.09 |
| 7 | 7 | Niamh Hofland | 02 | Royal Wolv | 4:26.29 |