| Wallingford to Sestu | 981.45 mi (1,579.49 km) |
| Wallingford to Settimo Torinese | 604.26 mi (972.46 km) |
| Wallingford to Seveso | 622.68 mi (1,002.10 km) |
| Wallingford to Sezze | 967.10 mi (1,556.40 km) |
| Wallingford to Siano | 1,058.13 mi (1,702.90 km) |
| Wallingford to Siena | 813.97 mi (1,309.96 km) |
| Wallingford to Signa | 782.24 mi (1,258.89 km) |
| Wallingford to Silea | 736.05 mi (1,184.56 km) |
| Wallingford to Silvi Paese | 948.10 mi (1,525.81 km) |
| Wallingford to Sinalunga | 832.58 mi (1,339.90 km) |
| Wallingford to Siniscola | 919.35 mi (1,479.56 km) |
| Wallingford to Sinnai | 983.94 mi (1,583.49 km) |
| Wallingford to Siracusa | 1,284.48 mi (2,067.16 km) |
| Wallingford to Solaro | 622.25 mi (1,001.41 km) |
| Wallingford to Soliera | 728.45 mi (1,172.33 km) |
