| Sorum to Popovo | 1,309.90 mi (2,108.07 km) |
| Sorum to Provadia | 1,345.07 mi (2,164.69 km) |
| Sorum to Radnevo | 1,370.96 mi (2,206.34 km) |
| Sorum to Radomir | 1,302.29 mi (2,095.83 km) |
| Sorum to Rakitovo | 1,358.04 mi (2,185.55 km) |
| Sorum to Rakovski | 1,353.70 mi (2,178.57 km) |
| Sorum to Razgrad | 1,304.03 mi (2,098.64 km) |
| Sorum to Razlog | 1,354.34 mi (2,179.59 km) |
| Sorum to Ruse | 1,274.34 mi (2,050.86 km) |
| Sorum to Samokov | 1,326.09 mi (2,134.13 km) |
| Sorum to Sandanski | 1,372.07 mi (2,208.13 km) |
| Sorum to Sevlievo | 1,308.93 mi (2,106.52 km) |
| Sorum to Shumen | 1,328.35 mi (2,137.77 km) |
| Sorum to Silistra | 1,283.02 mi (2,064.82 km) |
| Sorum to Sliven | 1,354.24 mi (2,179.43 km) |
