| Concarneau to Karlovo | 1,433.95 mi (2,307.72 km) |
| Concarneau to Karnobat | 1,534.95 mi (2,470.27 km) |
| Concarneau to Kavarna | 1,575.53 mi (2,535.57 km) |
| Concarneau to Kazanlak | 1,462.14 mi (2,353.09 km) |
| Concarneau to Knezha | 1,376.84 mi (2,215.81 km) |
| Concarneau to Kostinbrod | 1,355.51 mi (2,181.48 km) |
| Concarneau to Kozloduy | 1,353.26 mi (2,177.85 km) |
| Concarneau to Kyustendil | 1,346.53 mi (2,167.03 km) |
| Concarneau to Levski | 1,429.01 mi (2,299.78 km) |
| Concarneau to Lom | 1,329.21 mi (2,139.15 km) |
| Concarneau to Lovech | 1,416.02 mi (2,278.86 km) |
| Concarneau to Lukovit | 1,388.75 mi (2,234.98 km) |
| Concarneau to Lyaskovets | 1,463.25 mi (2,354.88 km) |
| Concarneau to Mezdra | 1,368.53 mi (2,202.43 km) |
| Concarneau to Momchilgrad | 1,495.46 mi (2,406.71 km) |
