| Mason City to Snodland | 4,122.95 mi (6,635.24 km) |
| Mason City to Soham | 4,081.92 mi (6,569.21 km) |
| Mason City to Solihull | 4,002.85 mi (6,441.97 km) |
| Mason City to Sompting | 4,112.54 mi (6,618.50 km) |
| Mason City to South Hayling | 4,090.53 mi (6,583.07 km) |
| Mason City to South Normanton | 3,994.14 mi (6,427.95 km) |
| Mason City to South Ockendon | 4,110.32 mi (6,614.92 km) |
| Mason City to South Shields | 3,925.96 mi (6,318.22 km) |
| Mason City to Southall | 4,086.10 mi (6,575.95 km) |
| Mason City to Southampton | 4,070.51 mi (6,550.85 km) |
| Mason City to Southborough | 4,122.56 mi (6,634.63 km) |
| Mason City to Southbourne | 4,062.38 mi (6,537.77 km) |
| Mason City to Southend | 4,124.27 mi (6,637.37 km) |
| Mason City to Southgate | 4,090.90 mi (6,583.66 km) |
| Mason City to Southport | 3,916.13 mi (6,302.40 km) |
