| Biddeford to Selargius | 3,975.98 mi (6,398.71 km) |
| Biddeford to Selvazzano Dentro | 3,872.21 mi (6,231.71 km) |
| Biddeford to Senago | 3,753.41 mi (6,040.53 km) |
| Biddeford to Senigallia | 3,991.87 mi (6,424.30 km) |
| Biddeford to Seravezza | 3,853.92 mi (6,202.29 km) |
| Biddeford to Seregno | 3,754.04 mi (6,041.55 km) |
| Biddeford to Seriate | 3,774.84 mi (6,075.02 km) |
| Biddeford to Sermoneta | 4,060.98 mi (6,535.51 km) |
| Biddeford to Serramanna | 3,958.95 mi (6,371.32 km) |
| Biddeford to Serravalle Pistoiese | 3,883.20 mi (6,249.41 km) |
| Biddeford to Sessa Aurunca | 4,114.22 mi (6,621.20 km) |
| Biddeford to Sesto Calende | 3,727.24 mi (5,998.41 km) |
| Biddeford to Sesto Fiorentino | 3,901.29 mi (6,278.52 km) |
| Biddeford to Sesto San Giovanni | 3,759.31 mi (6,050.03 km) |
| Biddeford to Sestri Levante | 3,808.38 mi (6,129.00 km) |
