| Surdulica to Devnya | 275.36 mi (443.15 km) |
| Surdulica to Dimitrovgrad | 180.79 mi (290.95 km) |
| Surdulica to Dobrich | 291.92 mi (469.80 km) |
| Surdulica to Dospat | 125.28 mi (201.62 km) |
| Surdulica to Dupnitsa | 56.86 mi (91.50 km) |
| Surdulica to Elhovo | 227.28 mi (365.78 km) |
| Surdulica to Etropole | 93.46 mi (150.40 km) |
| Surdulica to Gabrovo | 160.99 mi (259.08 km) |
| Surdulica to Gorna Oryahovitsa | 181.30 mi (291.77 km) |
| Surdulica to Gotse Delchev | 111.88 mi (180.05 km) |
| Surdulica to Harmanli | 197.83 mi (318.37 km) |
| Surdulica to Haskovo | 181.47 mi (292.05 km) |
| Surdulica to Ihtiman | 85.79 mi (138.06 km) |
| Surdulica to Isperih | 245.33 mi (394.82 km) |
| Surdulica to Kardzhali | 179.02 mi (288.11 km) |
