| Boston to Selargius | 1,043.04 mi (1,678.61 km) |
| Boston to Selvazzano Dentro | 746.11 mi (1,200.75 km) |
| Boston to Senago | 655.47 mi (1,054.88 km) |
| Boston to Senigallia | 879.96 mi (1,416.16 km) |
| Boston to Seravezza | 776.19 mi (1,249.16 km) |
| Boston to Seregno | 653.61 mi (1,051.89 km) |
| Boston to Seriate | 666.63 mi (1,072.84 km) |
| Boston to Sermoneta | 994.20 mi (1,600.01 km) |
| Boston to Serramanna | 1,027.49 mi (1,653.58 km) |
| Boston to Serravalle Pistoiese | 798.59 mi (1,285.20 km) |
| Boston to Sessa Aurunca | 1,039.65 mi (1,673.15 km) |
| Boston to Sesto Calende | 633.10 mi (1,018.88 km) |
| Boston to Sesto Fiorentino | 812.79 mi (1,308.06 km) |
| Boston to Sesto San Giovanni | 661.09 mi (1,063.93 km) |
| Boston to Sestri Levante | 737.77 mi (1,187.33 km) |
