| Kostinbrod to Devnya | 221.46 mi (356.40 km) |
| Kostinbrod to Dimitrovgrad | 132.57 mi (213.36 km) |
| Kostinbrod to Dobrich | 238.22 mi (383.38 km) |
| Kostinbrod to Dospat | 94.13 mi (151.48 km) |
| Kostinbrod to Dupnitsa | 38.45 mi (61.87 km) |
| Kostinbrod to Elhovo | 176.47 mi (284.00 km) |
| Kostinbrod to Etropole | 39.71 mi (63.91 km) |
| Kostinbrod to Gabrovo | 107.28 mi (172.66 km) |
| Kostinbrod to Gorna Oryahovitsa | 127.42 mi (205.07 km) |
| Kostinbrod to Gotse Delchev | 90.32 mi (145.36 km) |
| Kostinbrod to Harmanli | 149.94 mi (241.30 km) |
| Kostinbrod to Haskovo | 134.58 mi (216.58 km) |
| Kostinbrod to Ihtiman | 40.20 mi (64.70 km) |
| Kostinbrod to Isperih | 192.27 mi (309.43 km) |
| Kostinbrod to Kardzhali | 136.36 mi (219.45 km) |
