| Portsmouth to Roura | 4,334.26 mi (6,975.32 km) |
| Portsmouth to Saint-Georges | 4,361.75 mi (7,019.55 km) |
| Portsmouth to Saint-Laurent-du-Maroni | 4,355.96 mi (7,010.24 km) |
| Portsmouth to Sinnamary | 4,321.14 mi (6,954.20 km) |
| Portsmouth to Aachen | 313.09 mi (503.87 km) |
| Portsmouth to Aalen | 516.43 mi (831.11 km) |
| Portsmouth to Abensberg | 592.49 mi (953.52 km) |
| Portsmouth to Achern | 435.24 mi (700.44 km) |
| Portsmouth to Achim | 458.08 mi (737.20 km) |
| Portsmouth to Adelsdorf | 533.99 mi (859.38 km) |
| Portsmouth to Adendorf | 518.61 mi (834.61 km) |
| Portsmouth to Aerzen | 453.71 mi (730.18 km) |
| Portsmouth to Ahaus | 358.85 mi (577.51 km) |
| Portsmouth to Ahlen | 393.33 mi (633.00 km) |
| Portsmouth to Ahrensburg | 517.94 mi (833.54 km) |
