| Biddeford to Sesena | 3,352.94 mi (5,396.04 km) |
| Biddeford to Sestao | 3,288.02 mi (5,291.56 km) |
| Biddeford to Sevilla | 3,336.26 mi (5,369.19 km) |
| Biddeford to Sevilla La Nueva | 3,329.76 mi (5,358.73 km) |
| Biddeford to Silla | 3,531.27 mi (5,683.03 km) |
| Biddeford to Silleda | 3,063.93 mi (4,930.91 km) |
| Biddeford to Sitges | 3,572.07 mi (5,748.68 km) |
| Biddeford to Socuellamos | 3,421.46 mi (5,506.31 km) |
| Biddeford to Soller | 3,662.28 mi (5,893.88 km) |
| Biddeford to Solsona | 3,534.38 mi (5,688.03 km) |
| Biddeford to Son Servera | 3,697.75 mi (5,950.96 km) |
| Biddeford to Sonseca | 3,353.84 mi (5,397.48 km) |
| Biddeford to Sopelana | 3,287.18 mi (5,290.21 km) |
| Biddeford to Soria | 3,358.76 mi (5,405.39 km) |
| Biddeford to Suances | 3,236.79 mi (5,209.10 km) |
