| Boise to Shoreham-by-Sea | 4,868.21 mi (7,834.63 km) |
| Boise to Shotley Bridge | 4,623.54 mi (7,440.87 km) |
| Boise to Shrewsbury | 4,701.59 mi (7,566.47 km) |
| Boise to Sidcup | 4,849.84 mi (7,805.07 km) |
| Boise to Sidmouth | 4,784.78 mi (7,700.36 km) |
| Boise to Sileby | 4,749.43 mi (7,643.47 km) |
| Boise to Sittingbourne | 4,873.07 mi (7,842.44 km) |
| Boise to Skegness | 4,771.17 mi (7,678.46 km) |
| Boise to Skelmersdale | 4,660.42 mi (7,500.23 km) |
| Boise to Skipton | 4,662.82 mi (7,504.08 km) |
| Boise to Sleaford | 4,756.65 mi (7,655.08 km) |
| Boise to Slough | 4,825.16 mi (7,765.35 km) |
| Boise to Small Heath | 4,740.38 mi (7,628.90 km) |
| Boise to Smethwick | 4,735.49 mi (7,621.04 km) |
| Boise to Snaresbrook | 4,839.20 mi (7,787.94 km) |
