| Thornton Heath to Iver | 19.07 mi (30.70 km) |
| Thornton Heath to Ivybridge | 180.21 mi (290.02 km) |
| Thornton Heath to Jarrow | 253.95 mi (408.69 km) |
| Thornton Heath to Johnstone | 355.23 mi (571.69 km) |
| Thornton Heath to Kearsley | 175.24 mi (282.02 km) |
| Thornton Heath to Keighley | 186.43 mi (300.03 km) |
| Thornton Heath to Kempston | 52.04 mi (83.75 km) |
| Thornton Heath to Kendal | 230.09 mi (370.30 km) |
| Thornton Heath to Kenilworth | 89.95 mi (144.75 km) |
| Thornton Heath to Kenley | 5.28 mi (8.49 km) |
| Thornton Heath to Kensington | 7.74 mi (12.45 km) |
| Thornton Heath to Kenton | 15.56 mi (25.04 km) |
| Thornton Heath to Kettering | 73.43 mi (118.18 km) |
| Thornton Heath to Kew Green | 10.32 mi (16.60 km) |
| Thornton Heath to Keynsham | 102.93 mi (165.65 km) |
