| Saint-Cyr-sur-Loire to Popovo | 1,265.37 mi (2,036.41 km) |
| Saint-Cyr-sur-Loire to Provadia | 1,325.69 mi (2,133.49 km) |
| Saint-Cyr-sur-Loire to Radnevo | 1,279.94 mi (2,059.86 km) |
| Saint-Cyr-sur-Loire to Radomir | 1,134.50 mi (1,825.80 km) |
| Saint-Cyr-sur-Loire to Rakitovo | 1,203.65 mi (1,937.09 km) |
| Saint-Cyr-sur-Loire to Rakovski | 1,235.37 mi (1,988.13 km) |
| Saint-Cyr-sur-Loire to Razgrad | 1,273.98 mi (2,050.27 km) |
| Saint-Cyr-sur-Loire to Razlog | 1,178.32 mi (1,896.33 km) |
| Saint-Cyr-sur-Loire to Ruse | 1,240.58 mi (1,996.53 km) |
| Saint-Cyr-sur-Loire to Samokov | 1,168.69 mi (1,880.83 km) |
| Saint-Cyr-sur-Loire to Sandanski | 1,179.79 mi (1,898.69 km) |
| Saint-Cyr-sur-Loire to Sevlievo | 1,221.62 mi (1,966.01 km) |
| Saint-Cyr-sur-Loire to Shumen | 1,299.76 mi (2,091.76 km) |
| Saint-Cyr-sur-Loire to Silistra | 1,294.75 mi (2,083.71 km) |
| Saint-Cyr-sur-Loire to Sliven | 1,287.74 mi (2,072.41 km) |
