| Belfast to Selargius | 1,271.14 mi (2,045.70 km) |
| Belfast to Selvazzano Dentro | 1,007.19 mi (1,620.92 km) |
| Belfast to Senago | 909.57 mi (1,463.81 km) |
| Belfast to Senigallia | 1,139.68 mi (1,834.13 km) |
| Belfast to Seravezza | 1,027.98 mi (1,654.37 km) |
| Belfast to Seregno | 908.26 mi (1,461.70 km) |
| Belfast to Seriate | 923.24 mi (1,485.82 km) |
| Belfast to Sermoneta | 1,247.22 mi (2,007.21 km) |
| Belfast to Serramanna | 1,254.78 mi (2,019.37 km) |
| Belfast to Serravalle Pistoiese | 1,052.20 mi (1,693.35 km) |
| Belfast to Sessa Aurunca | 1,294.58 mi (2,083.42 km) |
| Belfast to Sesto Calende | 885.87 mi (1,425.66 km) |
| Belfast to Sesto Fiorentino | 1,067.41 mi (1,717.83 km) |
| Belfast to Sesto San Giovanni | 915.36 mi (1,473.13 km) |
| Belfast to Sestri Levante | 987.22 mi (1,588.78 km) |
