| Prestonpans to Devnya | 1,606.12 mi (2,584.80 km) |
| Prestonpans to Dimitrovgrad | 1,593.32 mi (2,564.20 km) |
| Prestonpans to Dobrich | 1,599.16 mi (2,573.60 km) |
| Prestonpans to Dospat | 1,564.08 mi (2,517.14 km) |
| Prestonpans to Dupnitsa | 1,496.53 mi (2,408.43 km) |
| Prestonpans to Elhovo | 1,621.56 mi (2,609.65 km) |
| Prestonpans to Etropole | 1,498.00 mi (2,410.80 km) |
| Prestonpans to Gabrovo | 1,543.12 mi (2,483.42 km) |
| Prestonpans to Gorna Oryahovitsa | 1,543.03 mi (2,483.26 km) |
| Prestonpans to Gotse Delchev | 1,553.62 mi (2,500.30 km) |
| Prestonpans to Harmanli | 1,609.73 mi (2,590.61 km) |
| Prestonpans to Haskovo | 1,598.05 mi (2,571.81 km) |
| Prestonpans to Ihtiman | 1,511.65 mi (2,432.76 km) |
| Prestonpans to Isperih | 1,555.66 mi (2,503.60 km) |
| Prestonpans to Kardzhali | 1,605.48 mi (2,583.77 km) |
