| Houthulst to Serik | 1,687.68 mi (2,716.06 km) |
| Houthulst to Serinhisar | 1,583.50 mi (2,548.39 km) |
| Houthulst to Serinyol | 1,920.13 mi (3,090.14 km) |
| Houthulst to Seydisehir | 1,693.84 mi (2,725.98 km) |
| Houthulst to Seyhan | 1,855.92 mi (2,986.81 km) |
| Houthulst to Seyitgazi | 1,554.21 mi (2,501.25 km) |
| Houthulst to Siirt | 2,092.66 mi (3,367.81 km) |
| Houthulst to Sile | 1,435.07 mi (2,309.53 km) |
| Houthulst to Silifke | 1,827.04 mi (2,940.33 km) |
| Houthulst to Silivri | 1,383.19 mi (2,226.03 km) |
| Houthulst to Silopi | 2,144.26 mi (3,450.86 km) |
| Houthulst to Simav | 1,501.36 mi (2,416.20 km) |
| Houthulst to Sinanpasa | 1,567.56 mi (2,522.74 km) |
| Houthulst to Sindirgi | 1,461.88 mi (2,352.66 km) |
| Houthulst to Sinop | 1,635.34 mi (2,631.83 km) |
