| Portet-sur-Garonne to Popovo | 1,241.03 mi (1,997.24 km) |
| Portet-sur-Garonne to Provadia | 1,302.48 mi (2,096.14 km) |
| Portet-sur-Garonne to Radnevo | 1,239.56 mi (1,994.87 km) |
| Portet-sur-Garonne to Radomir | 1,087.03 mi (1,749.41 km) |
| Portet-sur-Garonne to Rakitovo | 1,151.83 mi (1,853.68 km) |
| Portet-sur-Garonne to Rakovski | 1,191.38 mi (1,917.33 km) |
| Portet-sur-Garonne to Razgrad | 1,253.11 mi (2,016.69 km) |
| Portet-sur-Garonne to Razlog | 1,122.52 mi (1,806.52 km) |
| Portet-sur-Garonne to Ruse | 1,222.44 mi (1,967.32 km) |
| Portet-sur-Garonne to Samokov | 1,120.19 mi (1,802.77 km) |
| Portet-sur-Garonne to Sandanski | 1,118.46 mi (1,799.99 km) |
| Portet-sur-Garonne to Sevlievo | 1,189.06 mi (1,913.61 km) |
| Portet-sur-Garonne to Shumen | 1,276.50 mi (2,054.33 km) |
| Portet-sur-Garonne to Silistra | 1,284.26 mi (2,066.81 km) |
| Portet-sur-Garonne to Sliven | 1,254.13 mi (2,018.33 km) |
