| Final | |||||
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 1 | Martyna Ruszkowska | 01 | Swim Gwynedd | 5:07.02 |
| 1 | 2 | Kiera Henley | 01 | Stockport Mo | 5:05.23 |
| 2 | 3 | Megan Sheard | 01 | Stockport Mo | 5:03.66 |
| 3 | 4 | Sophia Wilson | 01 | Guildford Ct | 4:58.84 |
| 4 | 5 | Emily Large | 01 | Newcastle | 4:53.35 |
| 5 | 6 | Ciara Schlosshan | 01 | Co Leeds | 4:56.29 |
| 6 | 7 | Daisy Anderson | 01 | Thanet Swim | 5:02.16 |
| 7 | 8 | Madeleine Dyer | 01 | Co Sheffield | 5:03.87 |
| 8 | 9 | Caitlin Mackay | 01 | Wycombe Dist | 5:06.71 |
| 9 | 10 | Emilia Sansome | 01 | Wycombe Dist | 5:07.97 |