| Northampton to Iver | 51.72 mi (83.23 km) |
| Northampton to Ivybridge | 182.40 mi (293.55 km) |
| Northampton to Jarrow | 191.64 mi (308.41 km) |
| Northampton to Johnstone | 288.81 mi (464.79 km) |
| Northampton to Kearsley | 108.86 mi (175.19 km) |
| Northampton to Keighley | 120.71 mi (194.26 km) |
| Northampton to Kempston | 18.64 mi (30.00 km) |
| Northampton to Kendal | 163.74 mi (263.51 km) |
| Northampton to Kenilworth | 29.42 mi (47.35 km) |
| Northampton to Kenley | 71.28 mi (114.71 km) |
| Northampton to Kensington | 58.72 mi (94.51 km) |
| Northampton to Kenton | 50.93 mi (81.96 km) |
| Northampton to Kettering | 13.36 mi (21.50 km) |
| Northampton to Kew Green | 56.13 mi (90.33 km) |
| Northampton to Keynsham | 88.72 mi (142.79 km) |
