| Boulder to Shoreham-by-Sea | 4,702.57 mi (7,568.05 km) |
| Boulder to Shotley Bridge | 4,485.41 mi (7,218.57 km) |
| Boulder to Shrewsbury | 4,540.66 mi (7,307.48 km) |
| Boulder to Sidcup | 4,690.84 mi (7,549.18 km) |
| Boulder to Sidmouth | 4,604.26 mi (7,409.85 km) |
| Boulder to Sileby | 4,595.94 mi (7,396.45 km) |
| Boulder to Sittingbourne | 4,716.31 mi (7,590.17 km) |
| Boulder to Skegness | 4,627.65 mi (7,447.48 km) |
| Boulder to Skelmersdale | 4,506.76 mi (7,252.93 km) |
| Boulder to Skipton | 4,516.02 mi (7,267.84 km) |
| Boulder to Sleaford | 4,608.50 mi (7,416.66 km) |
| Boulder to Slough | 4,663.68 mi (7,505.46 km) |
| Boulder to Small Heath | 4,581.28 mi (7,372.86 km) |
| Boulder to Smethwick | 4,576.15 mi (7,364.60 km) |
| Boulder to Snaresbrook | 4,681.13 mi (7,533.56 km) |
