| Sable-sur-Sarthe to Popovo | 1,314.29 mi (2,115.15 km) |
| Sable-sur-Sarthe to Provadia | 1,374.35 mi (2,211.81 km) |
| Sable-sur-Sarthe to Radnevo | 1,330.33 mi (2,140.96 km) |
| Sable-sur-Sarthe to Radomir | 1,185.85 mi (1,908.44 km) |
| Sable-sur-Sarthe to Rakitovo | 1,255.18 mi (2,020.02 km) |
| Sable-sur-Sarthe to Rakovski | 1,286.18 mi (2,069.91 km) |
| Sable-sur-Sarthe to Razgrad | 1,322.53 mi (2,128.41 km) |
| Sable-sur-Sarthe to Razlog | 1,230.22 mi (1,979.85 km) |
| Sable-sur-Sarthe to Ruse | 1,288.95 mi (2,074.37 km) |
| Sable-sur-Sarthe to Samokov | 1,220.04 mi (1,963.46 km) |
| Sable-sur-Sarthe to Sandanski | 1,232.10 mi (1,982.87 km) |
| Sable-sur-Sarthe to Sevlievo | 1,271.45 mi (2,046.20 km) |
| Sable-sur-Sarthe to Shumen | 1,348.49 mi (2,170.19 km) |
| Sable-sur-Sarthe to Silistra | 1,342.17 mi (2,160.01 km) |
| Sable-sur-Sarthe to Sliven | 1,337.50 mi (2,152.50 km) |
