| Duffel to Serik | 1,629.83 mi (2,622.95 km) |
| Duffel to Serinhisar | 1,526.56 mi (2,456.76 km) |
| Duffel to Serinyol | 1,858.95 mi (2,991.69 km) |
| Duffel to Seydisehir | 1,634.80 mi (2,630.95 km) |
| Duffel to Seyhan | 1,794.76 mi (2,888.38 km) |
| Duffel to Seyitgazi | 1,493.81 mi (2,404.06 km) |
| Duffel to Siirt | 2,027.50 mi (3,262.95 km) |
| Duffel to Sile | 1,373.44 mi (2,210.34 km) |
| Duffel to Silifke | 1,767.43 mi (2,844.41 km) |
| Duffel to Silivri | 1,322.70 mi (2,128.68 km) |
| Duffel to Silopi | 2,079.31 mi (3,346.32 km) |
| Duffel to Simav | 1,442.81 mi (2,321.98 km) |
| Duffel to Sinanpasa | 1,508.33 mi (2,427.42 km) |
| Duffel to Sindirgi | 1,403.88 mi (2,259.32 km) |
| Duffel to Sinop | 1,569.99 mi (2,526.65 km) |
