| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Sapphira Gabbani | 16 | Co Sheffield | 4:20.01 |
| 1 | 2 | Aimee Hood | 15 | Co Birm'ham | 4:19.81 |
| 2 | 3 | Milly Boulding | 15 | Co Leeds | 4:19.51 |
| 3 | 4 | Marion Hanquet | 18 | Loughboro Un | 4:18.95 |
| 4 | 5 | Greta Kolbeck | 16 | Plymouth Lea | 4:17.84 |
| 5 | 6 | Lottie Wynne-Jones | 16 | Co Milton K | 4:18.21 |
| 6 | 7 | Merissa Booth | 14 | Wycombe Dist | 4:19.28 |
| 7 | 8 | Ella Dyson | 15 | Wycombe Dist | 4:19.70 |
| 8 | 9 | Jessica Podger | 18 | Millfield | 4:19.90 |
| 9 | 10 | Pearle Griffiths | 16 | Guildford Ct | 4:20.83 |