| Waipahu to Smolyan | 8,082.58 mi (13,007.66 km) |
| Waipahu to Sofia | 8,008.06 mi (12,887.73 km) |
| Waipahu to Sopot | 8,008.85 mi (12,888.99 km) |
| Waipahu to Sozopol | 8,013.43 mi (12,896.36 km) |
| Waipahu to Sredets | 8,020.53 mi (12,907.79 km) |
| Waipahu to Stamboliyski | 8,045.04 mi (12,947.23 km) |
| Waipahu to Stara Zagora | 8,021.13 mi (12,908.77 km) |
| Waipahu to Svilengrad | 8,065.06 mi (12,979.46 km) |
| Waipahu to Svishtov | 7,940.49 mi (12,778.98 km) |
| Waipahu to Targovishte | 7,961.35 mi (12,812.55 km) |
| Waipahu to Teteven | 7,991.55 mi (12,861.16 km) |
| Waipahu to Troyan | 7,992.83 mi (12,863.22 km) |
| Waipahu to Tryavna | 7,991.73 mi (12,861.45 km) |
| Waipahu to Tutrakan | 7,906.12 mi (12,723.68 km) |
| Waipahu to Varna | 7,957.31 mi (12,806.05 km) |
