| Bad Sooden-Allendorf to Popovo | 934.64 mi (1,504.15 km) |
| Bad Sooden-Allendorf to Provadia | 987.73 mi (1,589.60 km) |
| Bad Sooden-Allendorf to Radnevo | 973.37 mi (1,566.49 km) |
| Bad Sooden-Allendorf to Radomir | 857.05 mi (1,379.29 km) |
| Bad Sooden-Allendorf to Rakitovo | 924.62 mi (1,488.03 km) |
| Bad Sooden-Allendorf to Rakovski | 939.46 mi (1,511.92 km) |
| Bad Sooden-Allendorf to Razgrad | 937.03 mi (1,508.00 km) |
| Bad Sooden-Allendorf to Razlog | 909.28 mi (1,463.35 km) |
| Bad Sooden-Allendorf to Ruse | 902.64 mi (1,452.66 km) |
| Bad Sooden-Allendorf to Samokov | 888.41 mi (1,429.76 km) |
| Bad Sooden-Allendorf to Sandanski | 920.13 mi (1,480.81 km) |
| Bad Sooden-Allendorf to Sevlievo | 908.50 mi (1,462.09 km) |
| Bad Sooden-Allendorf to Shumen | 964.15 mi (1,551.64 km) |
| Bad Sooden-Allendorf to Silistra | 940.23 mi (1,513.16 km) |
| Bad Sooden-Allendorf to Sliven | 969.48 mi (1,560.24 km) |
