| Riverdale to Solofra | 5,176.98 mi (8,331.54 km) |
| Riverdale to Somma Lombardo | 4,743.60 mi (7,634.08 km) |
| Riverdale to Somma Vesuviana | 5,157.15 mi (8,299.64 km) |
| Riverdale to Sommacampagna | 4,844.98 mi (7,797.24 km) |
| Riverdale to Sona | 4,843.18 mi (7,794.34 km) |
| Riverdale to Sondrio | 4,778.47 mi (7,690.20 km) |
| Riverdale to Sora | 5,090.60 mi (8,192.52 km) |
| Riverdale to Sorbolo | 4,845.69 mi (7,798.39 km) |
| Riverdale to Soresina | 4,805.98 mi (7,734.47 km) |
| Riverdale to Sorisole | 4,783.02 mi (7,697.52 km) |
| Riverdale to Sorrento | 5,163.13 mi (8,309.25 km) |
| Riverdale to Sorso | 4,893.90 mi (7,875.98 km) |
| Riverdale to Sortino | 5,319.75 mi (8,561.32 km) |
| Riverdale to Soverato Marina | 5,332.66 mi (8,582.09 km) |
| Riverdale to Sovicille | 4,931.44 mi (7,936.38 km) |
