| Sulingen to Popovo | 1,026.78 mi (1,652.44 km) |
| Sulingen to Provadia | 1,077.98 mi (1,734.84 km) |
| Sulingen to Radnevo | 1,068.87 mi (1,720.18 km) |
| Sulingen to Radomir | 957.42 mi (1,540.82 km) |
| Sulingen to Rakitovo | 1,024.12 mi (1,648.17 km) |
| Sulingen to Rakovski | 1,036.77 mi (1,668.52 km) |
| Sulingen to Razgrad | 1,028.05 mi (1,654.49 km) |
| Sulingen to Razlog | 1,010.02 mi (1,625.47 km) |
| Sulingen to Ruse | 993.91 mi (1,599.54 km) |
| Sulingen to Samokov | 988.14 mi (1,590.26 km) |
| Sulingen to Sandanski | 1,021.70 mi (1,644.27 km) |
| Sulingen to Sevlievo | 1,003.76 mi (1,615.39 km) |
| Sulingen to Shumen | 1,055.09 mi (1,698.00 km) |
| Sulingen to Silistra | 1,027.83 mi (1,654.13 km) |
| Sulingen to Sliven | 1,063.27 mi (1,711.17 km) |
