| Boulder to Santa Venerina | 5,875.16 mi (9,455.15 km) |
| Boulder to Santeramo in Colle | 5,770.58 mi (9,286.85 km) |
| Boulder to Santo Stefano di Magra | 5,362.82 mi (8,630.62 km) |
| Boulder to Santo Stino di Livenza | 5,380.29 mi (8,658.74 km) |
| Boulder to Sarezzo | 5,300.34 mi (8,530.08 km) |
| Boulder to Sarno | 5,695.31 mi (9,165.72 km) |
| Boulder to Saronno | 5,261.37 mi (8,467.36 km) |
| Boulder to Sarzana | 5,366.78 mi (8,637.00 km) |
| Boulder to Sassari | 5,480.53 mi (8,820.06 km) |
| Boulder to Sasso Marconi | 5,397.73 mi (8,686.81 km) |
| Boulder to Sassuolo | 5,374.19 mi (8,648.92 km) |
| Boulder to Sava | 5,818.85 mi (9,364.53 km) |
| Boulder to Saviano | 5,686.69 mi (9,151.84 km) |
| Boulder to Savigliano | 5,258.49 mi (8,462.73 km) |
| Boulder to Savignano sul Panaro | 5,386.13 mi (8,668.14 km) |
