| South Valley to Devnya | 6,312.03 mi (10,158.24 km) |
| South Valley to Dimitrovgrad | 6,317.08 mi (10,166.37 km) |
| South Valley to Dobrich | 6,300.27 mi (10,139.30 km) |
| South Valley to Dospat | 6,293.70 mi (10,128.74 km) |
| South Valley to Dupnitsa | 6,226.88 mi (10,021.20 km) |
| South Valley to Elhovo | 6,340.45 mi (10,203.97 km) |
| South Valley to Etropole | 6,224.29 mi (10,017.03 km) |
| South Valley to Gabrovo | 6,264.00 mi (10,080.93 km) |
| South Valley to Gorna Oryahovitsa | 6,260.60 mi (10,075.47 km) |
| South Valley to Gotse Delchev | 6,284.29 mi (10,113.59 km) |
| South Valley to Harmanli | 6,332.82 mi (10,191.69 km) |
| South Valley to Haskovo | 6,322.46 mi (10,175.02 km) |
| South Valley to Ihtiman | 6,239.91 mi (10,042.16 km) |
| South Valley to Isperih | 6,262.44 mi (10,078.42 km) |
| South Valley to Kardzhali | 6,331.75 mi (10,189.97 km) |
