| Portsmouth to Spello | 842.44 mi (1,355.78 km) |
| Portsmouth to Spilamberto | 709.14 mi (1,141.25 km) |
| Portsmouth to Spilimbergo | 715.51 mi (1,151.50 km) |
| Portsmouth to Spinea | 710.99 mi (1,144.23 km) |
| Portsmouth to Spoleto | 854.27 mi (1,374.82 km) |
| Portsmouth to Spoltore | 921.53 mi (1,483.06 km) |
| Portsmouth to Spresiano | 702.99 mi (1,131.36 km) |
| Portsmouth to Squinzano | 1,164.11 mi (1,873.45 km) |
| Portsmouth to Statte | 1,125.88 mi (1,811.93 km) |
| Portsmouth to Stezzano | 608.31 mi (978.99 km) |
| Portsmouth to Strada | 765.14 mi (1,231.37 km) |
| Portsmouth to Stradella | 621.44 mi (1,000.12 km) |
| Portsmouth to Striano | 1,018.26 mi (1,638.73 km) |
| Portsmouth to Subiaco | 910.01 mi (1,464.52 km) |
| Portsmouth to Sulmona | 933.57 mi (1,502.43 km) |
