| Mason City to Shoreham-by-Sea | 4,114.86 mi (6,622.22 km) |
| Mason City to Shotley Bridge | 3,915.30 mi (6,301.07 km) |
| Mason City to Shrewsbury | 3,957.17 mi (6,368.45 km) |
| Mason City to Sidcup | 4,106.77 mi (6,609.21 km) |
| Mason City to Sidmouth | 4,009.88 mi (6,453.28 km) |
| Mason City to Sileby | 4,015.88 mi (6,462.94 km) |
| Mason City to Sittingbourne | 4,133.17 mi (6,651.70 km) |
| Mason City to Skegness | 4,052.75 mi (6,522.27 km) |
| Mason City to Skelmersdale | 3,927.63 mi (6,320.90 km) |
| Mason City to Skipton | 3,940.61 mi (6,341.79 km) |
| Mason City to Sleaford | 4,031.24 mi (6,487.66 km) |
| Mason City to Slough | 4,078.56 mi (6,563.81 km) |
| Mason City to Small Heath | 3,998.34 mi (6,434.70 km) |
| Mason City to Smethwick | 3,993.13 mi (6,426.32 km) |
| Mason City to Snaresbrook | 4,097.66 mi (6,594.55 km) |
