| Orsta to Popovo | 1,535.57 mi (2,471.27 km) |
| Orsta to Provadia | 1,571.99 mi (2,529.87 km) |
| Orsta to Radnevo | 1,595.36 mi (2,567.48 km) |
| Orsta to Radomir | 1,521.28 mi (2,448.26 km) |
| Orsta to Rakitovo | 1,578.89 mi (2,540.98 km) |
| Orsta to Rakovski | 1,576.52 mi (2,537.17 km) |
| Orsta to Razgrad | 1,530.20 mi (2,462.62 km) |
| Orsta to Razlog | 1,573.77 mi (2,532.74 km) |
| Orsta to Ruse | 1,500.04 mi (2,414.08 km) |
| Orsta to Samokov | 1,546.20 mi (2,488.37 km) |
| Orsta to Sandanski | 1,590.75 mi (2,560.06 km) |
| Orsta to Sevlievo | 1,532.70 mi (2,466.64 km) |
| Orsta to Shumen | 1,554.81 mi (2,502.22 km) |
| Orsta to Silistra | 1,510.35 mi (2,430.68 km) |
| Orsta to Sliven | 1,579.51 mi (2,541.98 km) |
