| Willoughby to Sestu | 4,520.60 mi (7,275.21 km) |
| Willoughby to Settimo Torinese | 4,242.87 mi (6,828.24 km) |
| Willoughby to Seveso | 4,280.70 mi (6,889.11 km) |
| Willoughby to Sezze | 4,603.72 mi (7,408.98 km) |
| Willoughby to Siano | 4,700.51 mi (7,564.74 km) |
| Willoughby to Siena | 4,459.15 mi (7,176.31 km) |
| Willoughby to Signa | 4,431.55 mi (7,131.89 km) |
| Willoughby to Silea | 4,408.29 mi (7,094.45 km) |
| Willoughby to Silvi Paese | 4,604.97 mi (7,410.98 km) |
| Willoughby to Sinalunga | 4,479.81 mi (7,209.55 km) |
| Willoughby to Siniscola | 4,496.88 mi (7,237.03 km) |
| Willoughby to Sinnai | 4,525.37 mi (7,282.87 km) |
| Willoughby to Siracusa | 4,882.69 mi (7,857.94 km) |
| Willoughby to Solaro | 4,279.55 mi (6,887.27 km) |
| Willoughby to Soliera | 4,387.72 mi (7,061.36 km) |
