| New Philadelphia to Smolyan | 5,124.69 mi (8,247.39 km) |
| New Philadelphia to Sofia | 5,021.30 mi (8,081.01 km) |
| New Philadelphia to Sopot | 5,078.78 mi (8,173.51 km) |
| New Philadelphia to Sozopol | 5,202.40 mi (8,372.46 km) |
| New Philadelphia to Sredets | 5,186.49 mi (8,346.84 km) |
| New Philadelphia to Stamboliyski | 5,093.49 mi (8,197.18 km) |
| New Philadelphia to Stara Zagora | 5,123.30 mi (8,245.15 km) |
| New Philadelphia to Svilengrad | 5,174.83 mi (8,328.09 km) |
| New Philadelphia to Svishtov | 5,058.49 mi (8,140.86 km) |
| New Philadelphia to Targovishte | 5,121.86 mi (8,242.84 km) |
| New Philadelphia to Teteven | 5,048.17 mi (8,124.25 km) |
| New Philadelphia to Troyan | 5,067.06 mi (8,154.65 km) |
| New Philadelphia to Tryavna | 5,097.95 mi (8,204.35 km) |
| New Philadelphia to Tutrakan | 5,086.74 mi (8,186.31 km) |
| New Philadelphia to Varna | 5,173.57 mi (8,326.06 km) |
