| Alenquer to Selargius | 972.41 mi (1,564.94 km) |
| Alenquer to Selvazzano Dentro | 1,146.60 mi (1,845.28 km) |
| Alenquer to Senago | 1,028.15 mi (1,654.66 km) |
| Alenquer to Senigallia | 1,192.80 mi (1,919.63 km) |
| Alenquer to Seravezza | 1,049.92 mi (1,689.68 km) |
| Alenquer to Seregno | 1,032.74 mi (1,662.04 km) |
| Alenquer to Seriate | 1,057.12 mi (1,701.27 km) |
| Alenquer to Sermoneta | 1,168.84 mi (1,881.06 km) |
| Alenquer to Serramanna | 958.75 mi (1,542.96 km) |
| Alenquer to Serravalle Pistoiese | 1,077.72 mi (1,734.42 km) |
| Alenquer to Sessa Aurunca | 1,217.94 mi (1,960.08 km) |
| Alenquer to Sesto Calende | 1,009.10 mi (1,623.99 km) |
| Alenquer to Sesto Fiorentino | 1,094.78 mi (1,761.87 km) |
| Alenquer to Sesto San Giovanni | 1,031.57 mi (1,660.15 km) |
| Alenquer to Sestri Levante | 1,013.77 mi (1,631.51 km) |
