| Diekirch to Popovo | 1,049.63 mi (1,689.22 km) |
| Diekirch to Provadia | 1,106.85 mi (1,781.30 km) |
| Diekirch to Radnevo | 1,077.73 mi (1,734.44 km) |
| Diekirch to Radomir | 945.66 mi (1,521.89 km) |
| Diekirch to Rakitovo | 1,015.40 mi (1,634.12 km) |
| Diekirch to Rakovski | 1,038.32 mi (1,671.01 km) |
| Diekirch to Razgrad | 1,054.98 mi (1,697.82 km) |
| Diekirch to Razlog | 995.14 mi (1,601.52 km) |
| Diekirch to Ruse | 1,020.54 mi (1,642.40 km) |
| Diekirch to Samokov | 979.03 mi (1,575.59 km) |
| Diekirch to Sandanski | 1,001.90 mi (1,612.41 km) |
| Diekirch to Sevlievo | 1,014.83 mi (1,633.20 km) |
| Diekirch to Shumen | 1,081.85 mi (1,741.07 km) |
| Diekirch to Silistra | 1,066.49 mi (1,716.34 km) |
| Diekirch to Sliven | 1,079.19 mi (1,736.79 km) |
