| Leiria to Selargius | 956.54 mi (1,539.40 km) |
| Leiria to Selvazzano Dentro | 1,113.56 mi (1,792.11 km) |
| Leiria to Senago | 993.42 mi (1,598.75 km) |
| Leiria to Senigallia | 1,164.09 mi (1,873.43 km) |
| Leiria to Seravezza | 1,019.62 mi (1,640.92 km) |
| Leiria to Seregno | 997.89 mi (1,605.94 km) |
| Leiria to Seriate | 1,022.46 mi (1,645.49 km) |
| Leiria to Sermoneta | 1,145.59 mi (1,843.65 km) |
| Leiria to Serramanna | 942.37 mi (1,516.60 km) |
| Leiria to Serravalle Pistoiese | 1,047.89 mi (1,686.42 km) |
| Leiria to Sessa Aurunca | 1,195.50 mi (1,923.96 km) |
| Leiria to Sesto Calende | 973.73 mi (1,567.06 km) |
| Leiria to Sesto Fiorentino | 1,065.24 mi (1,714.34 km) |
| Leiria to Sesto San Giovanni | 997.00 mi (1,604.52 km) |
| Leiria to Sestri Levante | 982.42 mi (1,581.05 km) |
