| Boadilla del Monte to Selargius | 695.60 mi (1,119.45 km) |
| Boadilla del Monte to Selvazzano Dentro | 862.08 mi (1,387.39 km) |
| Boadilla del Monte to Senago | 747.09 mi (1,202.33 km) |
| Boadilla del Monte to Senigallia | 904.29 mi (1,455.32 km) |
| Boadilla del Monte to Seravezza | 762.40 mi (1,226.97 km) |
| Boadilla del Monte to Seregno | 751.91 mi (1,210.09 km) |
| Boadilla del Monte to Seriate | 775.77 mi (1,248.48 km) |
| Boadilla del Monte to Sermoneta | 881.50 mi (1,418.63 km) |
| Boadilla del Monte to Serramanna | 680.95 mi (1,095.88 km) |
| Boadilla del Monte to Serravalle Pistoiese | 789.83 mi (1,271.11 km) |
| Boadilla del Monte to Sessa Aurunca | 931.27 mi (1,498.73 km) |
| Boadilla del Monte to Sesto Calende | 729.56 mi (1,174.11 km) |
| Boadilla del Monte to Sesto Fiorentino | 806.70 mi (1,298.26 km) |
| Boadilla del Monte to Sesto San Giovanni | 750.13 mi (1,207.21 km) |
| Boadilla del Monte to Sestri Levante | 727.32 mi (1,170.51 km) |
