| Solothurn to Serik | 1,394.55 mi (2,244.31 km) |
| Solothurn to Serinhisar | 1,287.01 mi (2,071.24 km) |
| Solothurn to Serinyol | 1,643.22 mi (2,644.50 km) |
| Solothurn to Seydisehir | 1,406.44 mi (2,263.44 km) |
| Solothurn to Seyhan | 1,579.34 mi (2,541.70 km) |
| Solothurn to Seyitgazi | 1,275.49 mi (2,052.69 km) |
| Solothurn to Siirt | 1,847.08 mi (2,972.59 km) |
| Solothurn to Sile | 1,165.75 mi (1,876.09 km) |
| Solothurn to Silifke | 1,541.65 mi (2,481.05 km) |
| Solothurn to Silivri | 1,107.01 mi (1,781.55 km) |
| Solothurn to Silopi | 1,896.17 mi (3,051.59 km) |
| Solothurn to Simav | 1,212.99 mi (1,952.12 km) |
| Solothurn to Sinanpasa | 1,282.15 mi (2,063.42 km) |
| Solothurn to Sindirgi | 1,171.22 mi (1,884.90 km) |
| Solothurn to Sinop | 1,396.62 mi (2,247.65 km) |
