| Grande-Synthe to Karlovo | 1,203.98 mi (1,937.62 km) |
| Grande-Synthe to Karnobat | 1,294.14 mi (2,082.72 km) |
| Grande-Synthe to Kavarna | 1,320.07 mi (2,124.45 km) |
| Grande-Synthe to Kazanlak | 1,229.37 mi (1,978.48 km) |
| Grande-Synthe to Knezha | 1,139.83 mi (1,834.38 km) |
| Grande-Synthe to Kostinbrod | 1,132.21 mi (1,822.12 km) |
| Grande-Synthe to Kozloduy | 1,114.33 mi (1,793.33 km) |
| Grande-Synthe to Kyustendil | 1,133.66 mi (1,824.45 km) |
| Grande-Synthe to Levski | 1,188.45 mi (1,912.63 km) |
| Grande-Synthe to Lom | 1,092.25 mi (1,757.81 km) |
| Grande-Synthe to Lovech | 1,180.41 mi (1,899.68 km) |
| Grande-Synthe to Lukovit | 1,155.17 mi (1,859.07 km) |
| Grande-Synthe to Lyaskovets | 1,223.09 mi (1,968.37 km) |
| Grande-Synthe to Mezdra | 1,138.09 mi (1,831.59 km) |
| Grande-Synthe to Momchilgrad | 1,275.57 mi (2,052.83 km) |
