| Sulphur Springs to Devnya | 6,058.31 mi (9,749.90 km) |
| Sulphur Springs to Dimitrovgrad | 6,044.24 mi (9,727.27 km) |
| Sulphur Springs to Dobrich | 6,050.42 mi (9,737.21 km) |
| Sulphur Springs to Dospat | 6,010.07 mi (9,672.27 km) |
| Sulphur Springs to Dupnitsa | 5,941.70 mi (9,562.24 km) |
| Sulphur Springs to Elhovo | 6,073.92 mi (9,775.03 km) |
| Sulphur Springs to Etropole | 5,947.86 mi (9,572.16 km) |
| Sulphur Springs to Gabrovo | 5,995.20 mi (9,648.35 km) |
| Sulphur Springs to Gorna Oryahovitsa | 5,995.68 mi (9,649.12 km) |
| Sulphur Springs to Gotse Delchev | 5,997.68 mi (9,652.33 km) |
| Sulphur Springs to Harmanli | 6,060.90 mi (9,754.07 km) |
| Sulphur Springs to Haskovo | 6,048.64 mi (9,734.34 km) |
| Sulphur Springs to Ihtiman | 5,959.74 mi (9,591.27 km) |
| Sulphur Springs to Isperih | 6,007.88 mi (9,668.75 km) |
| Sulphur Springs to Kardzhali | 6,054.87 mi (9,744.37 km) |
