| Johnstown to Smolyan | 5,031.97 mi (8,098.17 km) |
| Johnstown to Sofia | 4,928.96 mi (7,932.40 km) |
| Johnstown to Sopot | 4,987.54 mi (8,026.67 km) |
| Johnstown to Sozopol | 5,113.36 mi (8,229.15 km) |
| Johnstown to Sredets | 5,096.91 mi (8,202.69 km) |
| Johnstown to Stamboliyski | 5,001.37 mi (8,048.92 km) |
| Johnstown to Stara Zagora | 5,032.52 mi (8,099.05 km) |
| Johnstown to Svilengrad | 5,083.62 mi (8,181.29 km) |
| Johnstown to Svishtov | 4,969.08 mi (7,996.96 km) |
| Johnstown to Targovishte | 5,032.98 mi (8,099.81 km) |
| Johnstown to Teteven | 4,956.89 mi (7,977.35 km) |
| Johnstown to Troyan | 4,976.11 mi (8,008.27 km) |
| Johnstown to Tryavna | 5,007.63 mi (8,058.99 km) |
| Johnstown to Tutrakan | 4,998.99 mi (8,045.10 km) |
| Johnstown to Varna | 5,085.80 mi (8,184.80 km) |
