| Slochteren to Popovo | 1,117.76 mi (1,798.87 km) |
| Slochteren to Provadia | 1,169.23 mi (1,881.70 km) |
| Slochteren to Radnevo | 1,159.14 mi (1,865.46 km) |
| Slochteren to Radomir | 1,045.74 mi (1,682.96 km) |
| Slochteren to Rakitovo | 1,112.90 mi (1,791.04 km) |
| Slochteren to Rakovski | 1,126.47 mi (1,812.87 km) |
| Slochteren to Razgrad | 1,119.20 mi (1,801.18 km) |
| Slochteren to Razlog | 1,098.14 mi (1,767.29 km) |
| Slochteren to Ruse | 1,085.02 mi (1,746.17 km) |
| Slochteren to Samokov | 1,076.80 mi (1,732.95 km) |
| Slochteren to Sandanski | 1,109.32 mi (1,785.27 km) |
| Slochteren to Sevlievo | 1,094.08 mi (1,760.75 km) |
| Slochteren to Shumen | 1,146.25 mi (1,844.72 km) |
| Slochteren to Silistra | 1,119.29 mi (1,801.32 km) |
| Slochteren to Sliven | 1,153.96 mi (1,857.12 km) |
