| Tourcoing to Karlovo | 1,161.94 mi (1,869.97 km) |
| Tourcoing to Karnobat | 1,252.48 mi (2,015.67 km) |
| Tourcoing to Kavarna | 1,279.04 mi (2,058.41 km) |
| Tourcoing to Kazanlak | 1,187.42 mi (1,910.96 km) |
| Tourcoing to Knezha | 1,097.94 mi (1,766.97 km) |
| Tourcoing to Kostinbrod | 1,090.00 mi (1,754.18 km) |
| Tourcoing to Kozloduy | 1,072.48 mi (1,725.99 km) |
| Tourcoing to Kyustendil | 1,091.29 mi (1,756.27 km) |
| Tourcoing to Levski | 1,146.71 mi (1,845.45 km) |
| Tourcoing to Lom | 1,050.33 mi (1,690.35 km) |
| Tourcoing to Lovech | 1,138.51 mi (1,832.25 km) |
| Tourcoing to Lukovit | 1,113.20 mi (1,791.52 km) |
| Tourcoing to Lyaskovets | 1,181.36 mi (1,901.21 km) |
| Tourcoing to Mezdra | 1,096.03 mi (1,763.89 km) |
| Tourcoing to Momchilgrad | 1,233.35 mi (1,984.88 km) |
