| Portes-les-Valence to Popovo | 1,061.59 mi (1,708.47 km) |
| Portes-les-Valence to Provadia | 1,122.99 mi (1,807.28 km) |
| Portes-les-Valence to Radnevo | 1,065.60 mi (1,714.91 km) |
| Portes-les-Valence to Radomir | 914.81 mi (1,472.24 km) |
| Portes-les-Valence to Rakitovo | 981.76 mi (1,579.99 km) |
| Portes-les-Valence to Rakovski | 1,018.49 mi (1,639.10 km) |
| Portes-les-Valence to Razgrad | 1,072.66 mi (1,726.27 km) |
| Portes-les-Valence to Razlog | 953.90 mi (1,535.16 km) |
| Portes-les-Valence to Ruse | 1,041.01 mi (1,675.34 km) |
| Portes-les-Valence to Samokov | 948.59 mi (1,526.61 km) |
| Portes-les-Valence to Sandanski | 952.18 mi (1,532.38 km) |
| Portes-les-Valence to Sevlievo | 1,012.05 mi (1,628.73 km) |
| Portes-les-Valence to Shumen | 1,096.90 mi (1,765.29 km) |
| Portes-les-Valence to Silistra | 1,100.94 mi (1,771.79 km) |
| Portes-les-Valence to Sliven | 1,077.83 mi (1,734.61 km) |
