| Urbandale to Smolyan | 5,524.38 mi (8,890.62 km) |
| Urbandale to Sofia | 5,420.07 mi (8,722.77 km) |
| Urbandale to Sopot | 5,471.23 mi (8,805.09 km) |
| Urbandale to Sozopol | 5,582.07 mi (8,983.48 km) |
| Urbandale to Sredets | 5,569.06 mi (8,962.54 km) |
| Urbandale to Stamboliyski | 5,490.37 mi (8,835.90 km) |
| Urbandale to Stara Zagora | 5,512.87 mi (8,872.11 km) |
| Urbandale to Svilengrad | 5,566.10 mi (8,957.77 km) |
| Urbandale to Svishtov | 5,441.64 mi (8,757.48 km) |
| Urbandale to Targovishte | 5,501.54 mi (8,853.87 km) |
| Urbandale to Teteven | 5,441.12 mi (8,756.64 km) |
| Urbandale to Troyan | 5,458.11 mi (8,783.98 km) |
| Urbandale to Tryavna | 5,485.38 mi (8,827.86 km) |
| Urbandale to Tutrakan | 5,460.92 mi (8,788.50 km) |
| Urbandale to Varna | 5,546.94 mi (8,926.94 km) |
