| Serta to Devnya | 1,846.32 mi (2,971.37 km) |
| Serta to Dimitrovgrad | 1,754.75 mi (2,823.99 km) |
| Serta to Dobrich | 1,857.67 mi (2,989.64 km) |
| Serta to Dospat | 1,684.52 mi (2,710.97 km) |
| Serta to Dupnitsa | 1,626.82 mi (2,618.11 km) |
| Serta to Elhovo | 1,803.08 mi (2,901.78 km) |
| Serta to Etropole | 1,668.71 mi (2,685.54 km) |
| Serta to Gabrovo | 1,735.91 mi (2,793.68 km) |
| Serta to Gorna Oryahovitsa | 1,753.02 mi (2,821.21 km) |
| Serta to Gotse Delchev | 1,662.92 mi (2,676.21 km) |
| Serta to Harmanli | 1,770.97 mi (2,850.10 km) |
| Serta to Haskovo | 1,753.95 mi (2,822.71 km) |
| Serta to Ihtiman | 1,661.39 mi (2,673.75 km) |
| Serta to Isperih | 1,807.07 mi (2,908.20 km) |
| Serta to Kardzhali | 1,746.04 mi (2,809.98 km) |
