| Somero to Popovo | 1,199.49 mi (1,930.39 km) |
| Somero to Provadia | 1,216.65 mi (1,958.02 km) |
| Somero to Radnevo | 1,270.76 mi (2,045.09 km) |
| Somero to Radomir | 1,249.66 mi (2,011.13 km) |
| Somero to Rakitovo | 1,288.81 mi (2,074.14 km) |
| Somero to Rakovski | 1,268.97 mi (2,042.21 km) |
| Somero to Razgrad | 1,188.04 mi (1,911.96 km) |
| Somero to Razlog | 1,295.50 mi (2,084.91 km) |
| Somero to Ruse | 1,165.85 mi (1,876.25 km) |
| Somero to Samokov | 1,264.15 mi (2,034.45 km) |
| Somero to Sandanski | 1,317.31 mi (2,120.01 km) |
| Somero to Sevlievo | 1,218.39 mi (1,960.82 km) |
| Somero to Shumen | 1,207.16 mi (1,942.74 km) |
| Somero to Silistra | 1,151.57 mi (1,853.27 km) |
| Somero to Sliven | 1,245.81 mi (2,004.93 km) |
