| Wallingford Center to Sinop | 5,130.37 mi (8,256.54 km) |
| Wallingford Center to Siran | 5,367.91 mi (8,638.82 km) |
| Wallingford Center to Sirnak | 5,625.09 mi (9,052.71 km) |
| Wallingford Center to Sirvan | 5,581.63 mi (8,982.77 km) |
| Wallingford Center to Sivas | 5,308.83 mi (8,543.74 km) |
| Wallingford Center to Sivasli | 5,074.63 mi (8,166.82 km) |
| Wallingford Center to Siverek | 5,494.04 mi (8,841.81 km) |
| Wallingford Center to Sivrice | 5,459.79 mi (8,786.68 km) |
| Wallingford Center to Sivrihisar | 5,106.86 mi (8,218.70 km) |
| Wallingford Center to Sogut | 5,026.55 mi (8,089.45 km) |
| Wallingford Center to Sogutlu | 4,999.48 mi (8,045.88 km) |
| Wallingford Center to Soke | 5,012.08 mi (8,066.16 km) |
| Wallingford Center to Solhan | 5,500.08 mi (8,851.52 km) |
| Wallingford Center to Soma | 4,957.60 mi (7,978.48 km) |
| Wallingford Center to Sorgun | 5,235.02 mi (8,424.96 km) |
