| Biddeford to Solofra | 4,169.32 mi (6,709.88 km) |
| Biddeford to Somma Lombardo | 3,731.71 mi (6,005.60 km) |
| Biddeford to Somma Vesuviana | 4,149.83 mi (6,678.51 km) |
| Biddeford to Sommacampagna | 3,832.29 mi (6,167.47 km) |
| Biddeford to Sona | 3,830.45 mi (6,164.51 km) |
| Biddeford to Sondrio | 3,765.22 mi (6,059.53 km) |
| Biddeford to Sora | 4,082.32 mi (6,569.86 km) |
| Biddeford to Sorbolo | 3,834.10 mi (6,170.39 km) |
| Biddeford to Soresina | 3,794.04 mi (6,105.91 km) |
| Biddeford to Sorisole | 3,770.49 mi (6,068.02 km) |
| Biddeford to Sorrento | 4,156.41 mi (6,689.09 km) |
| Biddeford to Sorso | 3,893.65 mi (6,266.23 km) |
| Biddeford to Sortino | 4,321.03 mi (6,954.03 km) |
| Biddeford to Soverato Marina | 4,327.86 mi (6,965.01 km) |
| Biddeford to Sovicille | 3,922.11 mi (6,312.03 km) |
