| Sulphur to Devnya | 6,134.62 mi (9,872.72 km) |
| Sulphur to Dimitrovgrad | 6,113.17 mi (9,838.20 km) |
| Sulphur to Dobrich | 6,128.28 mi (9,862.51 km) |
| Sulphur to Dospat | 6,074.91 mi (9,776.62 km) |
| Sulphur to Dupnitsa | 6,006.32 mi (9,666.24 km) |
| Sulphur to Elhovo | 6,145.16 mi (9,889.68 km) |
| Sulphur to Etropole | 6,015.96 mi (9,681.75 km) |
| Sulphur to Gabrovo | 6,066.03 mi (9,762.33 km) |
| Sulphur to Gorna Oryahovitsa | 6,068.03 mi (9,765.55 km) |
| Sulphur to Gotse Delchev | 6,061.39 mi (9,754.86 km) |
| Sulphur to Harmanli | 6,130.09 mi (9,865.43 km) |
| Sulphur to Haskovo | 6,117.15 mi (9,844.61 km) |
| Sulphur to Ihtiman | 6,026.27 mi (9,698.34 km) |
| Sulphur to Isperih | 6,084.18 mi (9,791.54 km) |
| Sulphur to Kardzhali | 6,122.14 mi (9,852.63 km) |
