| Boechout to Karnobat | 1,207.47 mi (1,943.23 km) |
| Boechout to Kavarna | 1,230.94 mi (1,981.00 km) |
| Boechout to Kazanlak | 1,144.36 mi (1,841.67 km) |
| Boechout to Knezha | 1,054.46 mi (1,696.99 km) |
| Boechout to Kostinbrod | 1,049.48 mi (1,688.97 km) |
| Boechout to Kozloduy | 1,028.73 mi (1,655.59 km) |
| Boechout to Kyustendil | 1,052.99 mi (1,694.63 km) |
| Boechout to Levski | 1,102.22 mi (1,773.85 km) |
| Boechout to Lom | 1,007.14 mi (1,620.83 km) |
| Boechout to Lovech | 1,095.10 mi (1,762.40 km) |
| Boechout to Lukovit | 1,070.36 mi (1,722.58 km) |
| Boechout to Lyaskovets | 1,136.79 mi (1,829.48 km) |
| Boechout to Mezdra | 1,053.96 mi (1,696.18 km) |
| Boechout to Momchilgrad | 1,192.74 mi (1,919.52 km) |
| Boechout to Montana | 1,024.05 mi (1,648.05 km) |
