| Ladson to Devnya | 5,471.73 mi (8,805.90 km) |
| Ladson to Dimitrovgrad | 5,436.23 mi (8,748.77 km) |
| Ladson to Dobrich | 5,468.53 mi (8,800.75 km) |
| Ladson to Dospat | 5,390.76 mi (8,675.59 km) |
| Ladson to Dupnitsa | 5,322.40 mi (8,565.58 km) |
| Ladson to Elhovo | 5,472.29 mi (8,806.79 km) |
| Ladson to Etropole | 5,338.34 mi (8,591.23 km) |
| Ladson to Gabrovo | 5,393.11 mi (8,679.37 km) |
| Ladson to Gorna Oryahovitsa | 5,398.01 mi (8,687.25 km) |
| Ladson to Gotse Delchev | 5,375.33 mi (8,650.75 km) |
| Ladson to Harmanli | 5,453.49 mi (8,776.55 km) |
| Ladson to Haskovo | 5,439.40 mi (8,753.87 km) |
| Ladson to Ihtiman | 5,345.65 mi (8,603.00 km) |
| Ladson to Isperih | 5,421.75 mi (8,725.47 km) |
| Ladson to Kardzhali | 5,442.02 mi (8,758.08 km) |
