| Riga to Santa Venerina | 1,393.12 mi (2,242.00 km) |
| Riga to Santeramo in Colle | 1,162.96 mi (1,871.60 km) |
| Riga to Santo Stefano di Magra | 1,076.39 mi (1,732.28 km) |
| Riga to Santo Stino di Livenza | 915.79 mi (1,473.83 km) |
| Riga to Sarezzo | 981.15 mi (1,579.00 km) |
| Riga to Sarno | 1,192.46 mi (1,919.08 km) |
| Riga to Saronno | 1,013.32 mi (1,630.78 km) |
| Riga to Sarzana | 1,078.21 mi (1,735.22 km) |
| Riga to Sassari | 1,318.31 mi (2,121.61 km) |
| Riga to Sasso Marconi | 1,030.01 mi (1,657.64 km) |
| Riga to Sassuolo | 1,031.80 mi (1,660.51 km) |
| Riga to Sava | 1,180.38 mi (1,899.63 km) |
| Riga to Saviano | 1,187.48 mi (1,911.06 km) |
| Riga to Savigliano | 1,107.47 mi (1,782.31 km) |
| Riga to Savignano sul Panaro | 1,030.03 mi (1,657.67 km) |
