| Riga to Selargius | 1,396.75 mi (2,247.85 km) |
| Riga to Selvazzano Dentro | 957.86 mi (1,541.53 km) |
| Riga to Senago | 1,013.14 mi (1,630.49 km) |
| Riga to Senigallia | 1,030.05 mi (1,657.71 km) |
| Riga to Seravezza | 1,078.39 mi (1,735.51 km) |
| Riga to Seregno | 1,007.52 mi (1,621.44 km) |
| Riga to Seriate | 991.72 mi (1,596.01 km) |
| Riga to Sermoneta | 1,172.84 mi (1,887.51 km) |
| Riga to Serramanna | 1,391.35 mi (2,239.16 km) |
| Riga to Serravalle Pistoiese | 1,070.21 mi (1,722.34 km) |
| Riga to Sessa Aurunca | 1,176.41 mi (1,893.25 km) |
| Riga to Sesto Calende | 1,018.21 mi (1,638.65 km) |
| Riga to Sesto Fiorentino | 1,065.83 mi (1,715.29 km) |
| Riga to Sesto San Giovanni | 1,013.33 mi (1,630.80 km) |
| Riga to Sestri Levante | 1,082.84 mi (1,742.67 km) |
