| Soissons to Karlovo | 1,125.99 mi (1,812.10 km) |
| Soissons to Karnobat | 1,220.97 mi (1,964.97 km) |
| Soissons to Kavarna | 1,253.48 mi (2,017.28 km) |
| Soissons to Kazanlak | 1,152.61 mi (1,854.95 km) |
| Soissons to Knezha | 1,064.32 mi (1,712.86 km) |
| Soissons to Kostinbrod | 1,051.26 mi (1,691.84 km) |
| Soissons to Kozloduy | 1,039.48 mi (1,672.88 km) |
| Soissons to Kyustendil | 1,048.93 mi (1,688.09 km) |
| Soissons to Levski | 1,114.69 mi (1,793.91 km) |
| Soissons to Lom | 1,016.45 mi (1,635.82 km) |
| Soissons to Lovech | 1,104.55 mi (1,777.60 km) |
| Soissons to Lukovit | 1,078.35 mi (1,735.44 km) |
| Soissons to Lyaskovets | 1,149.33 mi (1,849.66 km) |
| Soissons to Mezdra | 1,059.93 mi (1,705.78 km) |
| Soissons to Momchilgrad | 1,194.13 mi (1,921.76 km) |
