| Ludwigslust to Popovo | 962.33 mi (1,548.72 km) |
| Ludwigslust to Provadia | 1,009.86 mi (1,625.21 km) |
| Ludwigslust to Radnevo | 1,010.51 mi (1,626.27 km) |
| Ludwigslust to Radomir | 911.50 mi (1,466.92 km) |
| Ludwigslust to Rakitovo | 975.31 mi (1,569.61 km) |
| Ludwigslust to Rakovski | 982.57 mi (1,581.29 km) |
| Ludwigslust to Razgrad | 961.63 mi (1,547.60 km) |
| Ludwigslust to Razlog | 964.60 mi (1,552.37 km) |
| Ludwigslust to Ruse | 928.22 mi (1,493.82 km) |
| Ludwigslust to Samokov | 940.23 mi (1,513.15 km) |
| Ludwigslust to Sandanski | 978.57 mi (1,574.86 km) |
| Ludwigslust to Sevlievo | 945.45 mi (1,521.55 km) |
| Ludwigslust to Shumen | 988.31 mi (1,590.53 km) |
| Ludwigslust to Silistra | 955.88 mi (1,538.35 km) |
| Ludwigslust to Sliven | 1,001.57 mi (1,611.87 km) |
