| Socuellamos to Popovo | 1,524.07 mi (2,452.75 km) |
| Socuellamos to Provadia | 1,584.44 mi (2,549.92 km) |
| Socuellamos to Radnevo | 1,509.61 mi (2,429.49 km) |
| Socuellamos to Radomir | 1,357.32 mi (2,184.40 km) |
| Socuellamos to Rakitovo | 1,415.49 mi (2,278.02 km) |
| Socuellamos to Rakovski | 1,460.19 mi (2,349.95 km) |
| Socuellamos to Razgrad | 1,538.45 mi (2,475.89 km) |
| Socuellamos to Razlog | 1,383.98 mi (2,227.30 km) |
| Socuellamos to Ruse | 1,510.83 mi (2,431.45 km) |
| Socuellamos to Samokov | 1,388.11 mi (2,233.94 km) |
| Socuellamos to Sandanski | 1,375.14 mi (2,213.07 km) |
| Socuellamos to Sevlievo | 1,467.42 mi (2,361.58 km) |
| Socuellamos to Shumen | 1,559.24 mi (2,509.35 km) |
| Socuellamos to Silistra | 1,576.43 mi (2,537.03 km) |
| Socuellamos to Sliven | 1,529.32 mi (2,461.20 km) |
