| Saint-Gregoire to Popovo | 1,378.03 mi (2,217.73 km) |
| Saint-Gregoire to Provadia | 1,437.91 mi (2,314.10 km) |
| Saint-Gregoire to Radnevo | 1,394.93 mi (2,244.92 km) |
| Saint-Gregoire to Radomir | 1,250.96 mi (2,013.23 km) |
| Saint-Gregoire to Rakitovo | 1,320.38 mi (2,124.94 km) |
| Saint-Gregoire to Rakovski | 1,351.01 mi (2,174.23 km) |
| Saint-Gregoire to Razgrad | 1,386.04 mi (2,230.61 km) |
| Saint-Gregoire to Razlog | 1,295.59 mi (2,085.04 km) |
| Saint-Gregoire to Ruse | 1,352.35 mi (2,176.39 km) |
| Saint-Gregoire to Samokov | 1,285.15 mi (2,068.24 km) |
| Saint-Gregoire to Sandanski | 1,297.64 mi (2,088.35 km) |
| Saint-Gregoire to Sevlievo | 1,335.73 mi (2,149.66 km) |
| Saint-Gregoire to Shumen | 1,412.10 mi (2,272.56 km) |
| Saint-Gregoire to Silistra | 1,404.92 mi (2,261.00 km) |
| Saint-Gregoire to Sliven | 1,401.73 mi (2,255.87 km) |
