| Northfield to Karlovo | 1,407.95 mi (2,265.88 km) |
| Northfield to Karnobat | 1,496.29 mi (2,408.05 km) |
| Northfield to Kavarna | 1,519.28 mi (2,445.04 km) |
| Northfield to Kazanlak | 1,432.91 mi (2,306.05 km) |
| Northfield to Knezha | 1,343.09 mi (2,161.50 km) |
| Northfield to Kostinbrod | 1,337.09 mi (2,151.84 km) |
| Northfield to Kozloduy | 1,317.41 mi (2,120.17 km) |
| Northfield to Kyustendil | 1,339.35 mi (2,155.47 km) |
| Northfield to Levski | 1,391.01 mi (2,238.62 km) |
| Northfield to Lom | 1,295.70 mi (2,085.22 km) |
| Northfield to Lovech | 1,383.72 mi (2,226.89 km) |
| Northfield to Lukovit | 1,358.84 mi (2,186.85 km) |
| Northfield to Lyaskovets | 1,425.59 mi (2,294.26 km) |
| Northfield to Mezdra | 1,342.21 mi (2,160.07 km) |
| Northfield to Momchilgrad | 1,480.43 mi (2,382.52 km) |
