| Ubbergen to Karlovo | 1,084.90 mi (1,745.98 km) |
| Ubbergen to Karnobat | 1,168.54 mi (1,880.58 km) |
| Ubbergen to Kavarna | 1,187.26 mi (1,910.72 km) |
| Ubbergen to Kazanlak | 1,108.52 mi (1,784.00 km) |
| Ubbergen to Knezha | 1,018.31 mi (1,638.81 km) |
| Ubbergen to Kostinbrod | 1,017.72 mi (1,637.85 km) |
| Ubbergen to Kozloduy | 992.29 mi (1,596.93 km) |
| Ubbergen to Kyustendil | 1,024.40 mi (1,648.62 km) |
| Ubbergen to Levski | 1,064.40 mi (1,712.99 km) |
| Ubbergen to Lom | 971.60 mi (1,563.64 km) |
| Ubbergen to Lovech | 1,058.92 mi (1,704.17 km) |
| Ubbergen to Lukovit | 1,035.11 mi (1,665.84 km) |
| Ubbergen to Lyaskovets | 1,098.73 mi (1,768.24 km) |
| Ubbergen to Mezdra | 1,019.90 mi (1,641.37 km) |
| Ubbergen to Momchilgrad | 1,160.32 mi (1,867.36 km) |
