| Hartsville to Devnya | 5,541.11 mi (8,917.55 km) |
| Hartsville to Dimitrovgrad | 5,518.73 mi (8,881.53 km) |
| Hartsville to Dobrich | 5,535.04 mi (8,907.78 km) |
| Hartsville to Dospat | 5,480.22 mi (8,819.56 km) |
| Hartsville to Dupnitsa | 5,411.63 mi (8,709.18 km) |
| Hartsville to Elhovo | 5,550.93 mi (8,933.36 km) |
| Hartsville to Etropole | 5,421.46 mi (8,725.00 km) |
| Hartsville to Gabrovo | 5,471.77 mi (8,805.97 km) |
| Hartsville to Gorna Oryahovitsa | 5,473.95 mi (8,809.47 km) |
| Hartsville to Gotse Delchev | 5,466.66 mi (8,797.75 km) |
| Hartsville to Harmanli | 5,535.67 mi (8,908.80 km) |
| Hartsville to Haskovo | 5,522.67 mi (8,887.89 km) |
| Hartsville to Ihtiman | 5,431.66 mi (8,741.42 km) |
| Hartsville to Isperih | 5,490.67 mi (8,836.39 km) |
| Hartsville to Kardzhali | 5,527.57 mi (8,895.76 km) |
