| Saint-Cyr-sur-Loire to Karlovo | 1,217.86 mi (1,959.96 km) |
| Saint-Cyr-sur-Loire to Karnobat | 1,319.40 mi (2,123.37 km) |
| Saint-Cyr-sur-Loire to Kavarna | 1,361.38 mi (2,190.93 km) |
| Saint-Cyr-sur-Loire to Kazanlak | 1,246.16 mi (2,005.50 km) |
| Saint-Cyr-sur-Loire to Knezha | 1,161.26 mi (1,868.86 km) |
| Saint-Cyr-sur-Loire to Kostinbrod | 1,139.23 mi (1,833.42 km) |
| Saint-Cyr-sur-Loire to Kozloduy | 1,137.86 mi (1,831.22 km) |
| Saint-Cyr-sur-Loire to Kyustendil | 1,130.08 mi (1,818.68 km) |
| Saint-Cyr-sur-Loire to Levski | 1,213.61 mi (1,953.12 km) |
| Saint-Cyr-sur-Loire to Lom | 1,113.71 mi (1,792.34 km) |
| Saint-Cyr-sur-Loire to Lovech | 1,200.27 mi (1,931.65 km) |
| Saint-Cyr-sur-Loire to Lukovit | 1,172.92 mi (1,887.63 km) |
| Saint-Cyr-sur-Loire to Lyaskovets | 1,247.76 mi (2,008.07 km) |
| Saint-Cyr-sur-Loire to Mezdra | 1,152.54 mi (1,854.83 km) |
| Saint-Cyr-sur-Loire to Momchilgrad | 1,279.03 mi (2,058.40 km) |
