| Sandridge to Popovo | 1,357.31 mi (2,184.37 km) |
| Sandridge to Provadia | 1,413.54 mi (2,274.87 km) |
| Sandridge to Radnevo | 1,387.60 mi (2,233.12 km) |
| Sandridge to Radomir | 1,256.82 mi (2,022.65 km) |
| Sandridge to Rakitovo | 1,326.51 mi (2,134.81 km) |
| Sandridge to Rakovski | 1,348.84 mi (2,170.74 km) |
| Sandridge to Razgrad | 1,361.88 mi (2,191.73 km) |
| Sandridge to Razlog | 1,306.39 mi (2,102.43 km) |
| Sandridge to Ruse | 1,327.36 mi (2,136.19 km) |
| Sandridge to Samokov | 1,290.12 mi (2,076.25 km) |
| Sandridge to Sandanski | 1,313.14 mi (2,113.30 km) |
| Sandridge to Sevlievo | 1,324.25 mi (2,131.18 km) |
| Sandridge to Shumen | 1,388.89 mi (2,235.19 km) |
| Sandridge to Silistra | 1,370.71 mi (2,205.95 km) |
| Sandridge to Sliven | 1,388.12 mi (2,233.97 km) |
