| Portimao to Selargius | 970.53 mi (1,561.91 km) |
| Portimao to Selvazzano Dentro | 1,194.66 mi (1,922.62 km) |
| Portimao to Senago | 1,082.80 mi (1,742.60 km) |
| Portimao to Senigallia | 1,226.68 mi (1,974.16 km) |
| Portimao to Seravezza | 1,090.02 mi (1,754.21 km) |
| Portimao to Seregno | 1,087.74 mi (1,750.54 km) |
| Portimao to Seriate | 1,111.25 mi (1,788.38 km) |
| Portimao to Sermoneta | 1,186.24 mi (1,909.07 km) |
| Portimao to Serramanna | 958.50 mi (1,542.56 km) |
| Portimao to Serravalle Pistoiese | 1,116.07 mi (1,796.14 km) |
| Portimao to Sessa Aurunca | 1,232.52 mi (1,983.56 km) |
| Portimao to Sesto Calende | 1,066.02 mi (1,715.59 km) |
| Portimao to Sesto Fiorentino | 1,132.06 mi (1,821.88 km) |
| Portimao to Sesto San Giovanni | 1,085.61 mi (1,747.13 km) |
| Portimao to Sestri Levante | 1,057.59 mi (1,702.03 km) |
