| Ladson to Popovo | 5,411.60 mi (8,709.12 km) |
| Ladson to Provadia | 5,467.61 mi (8,799.26 km) |
| Ladson to Radnevo | 5,440.45 mi (8,755.56 km) |
| Ladson to Radomir | 5,304.46 mi (8,536.70 km) |
| Ladson to Rakitovo | 5,374.39 mi (8,649.24 km) |
| Ladson to Rakovski | 5,400.12 mi (8,690.65 km) |
| Ladson to Razgrad | 5,416.04 mi (8,716.27 km) |
| Ladson to Razlog | 5,351.79 mi (8,612.88 km) |
| Ladson to Ruse | 5,381.52 mi (8,660.72 km) |
| Ladson to Samokov | 5,338.35 mi (8,591.24 km) |
| Ladson to Sandanski | 5,355.82 mi (8,619.36 km) |
| Ladson to Sevlievo | 5,377.74 mi (8,654.63 km) |
| Ladson to Shumen | 5,443.08 mi (8,759.79 km) |
| Ladson to Silistra | 5,423.22 mi (8,727.83 km) |
| Ladson to Sliven | 5,442.05 mi (8,758.14 km) |
