| Portsmouth to Savignano sul Rubicone | 780.46 mi (1,256.04 km) |
| Portsmouth to Savona | 631.96 mi (1,017.05 km) |
| Portsmouth to Scafati | 1,020.05 mi (1,641.62 km) |
| Portsmouth to Scalea | 1,113.07 mi (1,791.31 km) |
| Portsmouth to Scandiano | 694.39 mi (1,117.51 km) |
| Portsmouth to Scandicci | 752.29 mi (1,210.69 km) |
| Portsmouth to Schio | 670.65 mi (1,079.31 km) |
| Portsmouth to Sciacca | 1,152.42 mi (1,854.64 km) |
| Portsmouth to Scicli | 1,242.62 mi (1,999.81 km) |
| Portsmouth to Scordia | 1,218.22 mi (1,960.54 km) |
| Portsmouth to Scorze | 705.78 mi (1,135.85 km) |
| Portsmouth to Sedico | 684.21 mi (1,101.13 km) |
| Portsmouth to Sedriano | 590.80 mi (950.80 km) |
| Portsmouth to Segni | 919.88 mi (1,480.40 km) |
| Portsmouth to Segrate | 602.38 mi (969.43 km) |
