| Portsmouth to San Giovanni Lupatoto | 671.92 mi (1,081.34 km) |
| Portsmouth to San Giovanni Rotondo | 1,016.56 mi (1,636.00 km) |
| Portsmouth to San Giovanni Valdarno | 773.73 mi (1,245.19 km) |
| Portsmouth to San Giuliano Milanese | 606.07 mi (975.37 km) |
| Portsmouth to San Giuliano Terme | 725.68 mi (1,167.86 km) |
| Portsmouth to San Giuseppe Iato | 1,128.77 mi (1,816.58 km) |
| Portsmouth to San Giuseppe Vesuviano | 1,015.07 mi (1,633.60 km) |
| Portsmouth to San Giustino | 797.80 mi (1,283.94 km) |
| Portsmouth to San Gregorio di Catania | 1,211.67 mi (1,950.00 km) |
| Portsmouth to San Lazzaro di Savena | 726.25 mi (1,168.79 km) |
| Portsmouth to San Marco in Lamis | 1,012.35 mi (1,629.22 km) |
| Portsmouth to San Martino Buon Albergo | 673.04 mi (1,083.15 km) |
| Portsmouth to San Martino di Lupari | 692.61 mi (1,114.64 km) |
| Portsmouth to San Marzano di San Giuseppe | 1,142.73 mi (1,839.04 km) |
| Portsmouth to San Marzano sul Sarno | 1,021.65 mi (1,644.19 km) |
