| Diekirch to Karlovo | 1,017.30 mi (1,637.18 km) |
| Diekirch to Karnobat | 1,108.46 mi (1,783.90 km) |
| Diekirch to Kavarna | 1,136.47 mi (1,828.97 km) |
| Diekirch to Kazanlak | 1,042.89 mi (1,678.37 km) |
| Diekirch to Knezha | 953.53 mi (1,534.56 km) |
| Diekirch to Kostinbrod | 945.18 mi (1,521.13 km) |
| Diekirch to Kozloduy | 928.15 mi (1,493.71 km) |
| Diekirch to Kyustendil | 946.55 mi (1,523.33 km) |
| Diekirch to Levski | 1,002.56 mi (1,613.46 km) |
| Diekirch to Lom | 905.87 mi (1,457.86 km) |
| Diekirch to Lovech | 994.07 mi (1,599.80 km) |
| Diekirch to Lukovit | 968.65 mi (1,558.89 km) |
| Diekirch to Lyaskovets | 1,037.22 mi (1,669.25 km) |
| Diekirch to Mezdra | 951.36 mi (1,531.06 km) |
| Diekirch to Momchilgrad | 1,088.53 mi (1,751.83 km) |
