| Adrian to Smolyan | 5,159.39 mi (8,303.24 km) |
| Adrian to Sofia | 5,055.51 mi (8,136.06 km) |
| Adrian to Sopot | 5,111.05 mi (8,225.45 km) |
| Adrian to Sozopol | 5,230.83 mi (8,418.20 km) |
| Adrian to Sredets | 5,215.80 mi (8,394.02 km) |
| Adrian to Stamboliyski | 5,127.22 mi (8,251.47 km) |
| Adrian to Stara Zagora | 5,154.73 mi (8,295.74 km) |
| Adrian to Svilengrad | 5,206.91 mi (8,379.71 km) |
| Adrian to Svishtov | 5,087.74 mi (8,187.92 km) |
| Adrian to Targovishte | 5,150.13 mi (8,288.33 km) |
| Adrian to Teteven | 5,080.55 mi (8,176.35 km) |
| Adrian to Troyan | 5,098.86 mi (8,205.82 km) |
| Adrian to Tryavna | 5,128.64 mi (8,253.75 km) |
| Adrian to Tutrakan | 5,113.19 mi (8,228.88 km) |
| Adrian to Varna | 5,199.94 mi (8,368.50 km) |
