| Herstal to Dimitrovgrad | 1,117.49 mi (1,798.42 km) |
| Herstal to Dobrich | 1,147.43 mi (1,846.62 km) |
| Herstal to Dospat | 1,079.06 mi (1,736.58 km) |
| Herstal to Dupnitsa | 1,010.56 mi (1,626.33 km) |
| Herstal to Elhovo | 1,151.30 mi (1,852.84 km) |
| Herstal to Etropole | 1,019.98 mi (1,641.50 km) |
| Herstal to Gabrovo | 1,072.03 mi (1,725.26 km) |
| Herstal to Gorna Oryahovitsa | 1,075.99 mi (1,731.64 km) |
| Herstal to Gotse Delchev | 1,066.24 mi (1,715.95 km) |
| Herstal to Harmanli | 1,134.53 mi (1,825.85 km) |
| Herstal to Haskovo | 1,121.26 mi (1,804.49 km) |
| Herstal to Ihtiman | 1,029.98 mi (1,657.59 km) |
| Herstal to Isperih | 1,099.92 mi (1,770.15 km) |
| Herstal to Kardzhali | 1,125.88 mi (1,811.93 km) |
| Herstal to Karlovo | 1,060.26 mi (1,706.33 km) |
