| Rio Maior to Selargius | 965.91 mi (1,554.49 km) |
| Rio Maior to Selvazzano Dentro | 1,133.27 mi (1,823.82 km) |
| Rio Maior to Senago | 1,014.12 mi (1,632.07 km) |
| Rio Maior to Senigallia | 1,181.21 mi (1,900.97 km) |
| Rio Maior to Seravezza | 1,037.67 mi (1,669.96 km) |
| Rio Maior to Seregno | 1,018.66 mi (1,639.38 km) |
| Rio Maior to Seriate | 1,043.13 mi (1,678.75 km) |
| Rio Maior to Sermoneta | 1,159.43 mi (1,865.92 km) |
| Rio Maior to Serramanna | 952.05 mi (1,532.18 km) |
| Rio Maior to Serravalle Pistoiese | 1,065.66 mi (1,715.01 km) |
| Rio Maior to Sessa Aurunca | 1,208.86 mi (1,945.47 km) |
| Rio Maior to Sesto Calende | 994.81 mi (1,600.99 km) |
| Rio Maior to Sesto Fiorentino | 1,082.84 mi (1,742.66 km) |
| Rio Maior to Sesto San Giovanni | 1,017.60 mi (1,637.68 km) |
| Rio Maior to Sestri Levante | 1,001.09 mi (1,611.10 km) |
