| Solon to Smolyan | 5,083.39 mi (8,180.92 km) |
| Solon to Sofia | 4,979.84 mi (8,014.28 km) |
| Solon to Sopot | 5,036.78 mi (8,105.92 km) |
| Solon to Sozopol | 5,159.36 mi (8,303.18 km) |
| Solon to Sredets | 5,143.68 mi (8,277.96 km) |
| Solon to Stamboliyski | 5,051.91 mi (8,130.26 km) |
| Solon to Stara Zagora | 5,081.07 mi (8,177.20 km) |
| Solon to Svilengrad | 5,132.80 mi (8,260.44 km) |
| Solon to Svishtov | 5,015.65 mi (8,071.90 km) |
| Solon to Targovishte | 5,078.76 mi (8,173.47 km) |
| Solon to Teteven | 5,006.19 mi (8,056.69 km) |
| Solon to Troyan | 5,024.93 mi (8,086.84 km) |
| Solon to Tryavna | 5,055.51 mi (8,136.05 km) |
| Solon to Tutrakan | 5,043.13 mi (8,116.14 km) |
| Solon to Varna | 5,129.96 mi (8,255.88 km) |
