| San Marino to Devnya | 6,671.26 mi (10,736.35 km) |
| San Marino to Dimitrovgrad | 6,693.74 mi (10,772.53 km) |
| San Marino to Dobrich | 6,656.15 mi (10,712.05 km) |
| San Marino to Dospat | 6,680.63 mi (10,751.44 km) |
| San Marino to Dupnitsa | 6,616.46 mi (10,648.16 km) |
| San Marino to Elhovo | 6,710.88 mi (10,800.11 km) |
| San Marino to Etropole | 6,605.97 mi (10,631.28 km) |
| San Marino to Gabrovo | 6,637.97 mi (10,682.78 km) |
| San Marino to Gorna Oryahovitsa | 6,631.10 mi (10,671.72 km) |
| San Marino to Gotse Delchev | 6,674.10 mi (10,740.93 km) |
| San Marino to Harmanli | 6,708.34 mi (10,796.02 km) |
| San Marino to Haskovo | 6,699.91 mi (10,782.46 km) |
| San Marino to Ihtiman | 6,624.69 mi (10,661.41 km) |
| San Marino to Isperih | 6,623.41 mi (10,659.35 km) |
| San Marino to Kardzhali | 6,711.81 mi (10,801.61 km) |
