| Final | |||||
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 1 | Sophie Smith | 01 | St Thomas | 4:31.30 |
| 2 | 2 | Leah Crisp | 01 | Co Leeds | 4:30.02 |
| 3 | 3 | Niamh Hofland | 02 | Royal Wolv | 4:29.35 |
| 4 | 4 | Rebecca Sutton | 01 | Bridgend Cty | 4:25.02 |
| 5 | 5 | Annalea Davison | 01 | Newcastle | 4:27.60 |
| 6 | 6 | Maisie Macartney | 01 | Thanet Swim | 4:29.70 |
| 7 | 7 | Kiera Henley | 01 | Stockport Mo | 4:31.27 |
| 8 | 8 | Summer Kennedy | 01 | Nova Cent'n | 4:32.47 |