| Biarritz to Karlovo | 1,326.72 mi (2,135.15 km) |
| Biarritz to Karnobat | 1,435.13 mi (2,309.61 km) |
| Biarritz to Kavarna | 1,491.14 mi (2,399.76 km) |
| Biarritz to Kazanlak | 1,356.61 mi (2,183.26 km) |
| Biarritz to Knezha | 1,280.29 mi (2,060.42 km) |
| Biarritz to Kostinbrod | 1,245.21 mi (2,003.97 km) |
| Biarritz to Kozloduy | 1,260.13 mi (2,027.98 km) |
| Biarritz to Kyustendil | 1,225.85 mi (1,972.81 km) |
| Biarritz to Levski | 1,333.77 mi (2,146.49 km) |
| Biarritz to Lom | 1,235.24 mi (1,987.92 km) |
| Biarritz to Lovech | 1,315.88 mi (2,117.70 km) |
| Biarritz to Lukovit | 1,287.77 mi (2,072.47 km) |
| Biarritz to Lyaskovets | 1,365.90 mi (2,198.20 km) |
| Biarritz to Mezdra | 1,265.18 mi (2,036.11 km) |
| Biarritz to Momchilgrad | 1,374.58 mi (2,212.17 km) |
