| Portes-les-Valence to Devnya | 1,128.97 mi (1,816.90 km) |
| Portes-les-Valence to Dimitrovgrad | 1,054.41 mi (1,696.91 km) |
| Portes-les-Valence to Dobrich | 1,136.53 mi (1,829.06 km) |
| Portes-les-Valence to Dospat | 993.27 mi (1,598.51 km) |
| Portes-les-Valence to Dupnitsa | 928.74 mi (1,494.66 km) |
| Portes-les-Valence to Elhovo | 1,099.28 mi (1,769.11 km) |
| Portes-les-Valence to Etropole | 960.89 mi (1,546.40 km) |
| Portes-les-Valence to Gabrovo | 1,025.57 mi (1,650.49 km) |
| Portes-les-Valence to Gorna Oryahovitsa | 1,038.97 mi (1,672.06 km) |
| Portes-les-Valence to Gotse Delchev | 974.12 mi (1,567.69 km) |
| Portes-les-Valence to Harmanli | 1,071.55 mi (1,724.49 km) |
| Portes-les-Valence to Haskovo | 1,055.26 mi (1,698.28 km) |
| Portes-les-Valence to Ihtiman | 959.35 mi (1,543.92 km) |
| Portes-les-Valence to Isperih | 1,085.46 mi (1,746.89 km) |
| Portes-les-Valence to Kardzhali | 1,051.74 mi (1,692.62 km) |
