| Portsmouth to Albenga | 637.02 mi (1,025.18 km) |
| Portsmouth to Alberobello | 1,116.59 mi (1,796.97 km) |
| Portsmouth to Albignasego | 705.38 mi (1,135.20 km) |
| Portsmouth to Albinea | 690.07 mi (1,110.56 km) |
| Portsmouth to Albino | 608.89 mi (979.92 km) |
| Portsmouth to Alcamo | 1,121.54 mi (1,804.94 km) |
| Portsmouth to Alessandria | 605.66 mi (974.72 km) |
| Portsmouth to Alfonsine | 749.03 mi (1,205.45 km) |
| Portsmouth to Alghero | 839.41 mi (1,350.90 km) |
| Portsmouth to Alpignano | 559.61 mi (900.60 km) |
| Portsmouth to Altamura | 1,089.61 mi (1,753.56 km) |
| Portsmouth to Altavilla Vicentina | 682.31 mi (1,098.07 km) |
| Portsmouth to Altofonte | 1,127.52 mi (1,814.57 km) |
| Portsmouth to Altopascio | 731.41 mi (1,177.08 km) |
| Portsmouth to Alzano Lombardo | 607.59 mi (977.82 km) |
