| Upper Arlington to Alenquer | 3,824.31 mi (6,154.64 km) |
| Upper Arlington to Alfena | 3,781.61 mi (6,085.91 km) |
| Upper Arlington to Alijo | 3,829.71 mi (6,163.32 km) |
| Upper Arlington to Aljustrel | 3,900.82 mi (6,277.77 km) |
| Upper Arlington to Almada | 3,828.93 mi (6,162.07 km) |
| Upper Arlington to Almargem | 3,818.31 mi (6,144.98 km) |
| Upper Arlington to Almeirim | 3,838.87 mi (6,178.07 km) |
| Upper Arlington to Amadora | 3,823.67 mi (6,153.61 km) |
| Upper Arlington to Amarante | 3,802.28 mi (6,119.18 km) |
| Upper Arlington to Amares | 3,779.46 mi (6,082.45 km) |
| Upper Arlington to Amora | 3,832.50 mi (6,167.81 km) |
| Upper Arlington to Anadia | 3,809.97 mi (6,131.55 km) |
| Upper Arlington to Angra do Heroismo | 2,935.90 mi (4,724.87 km) |
| Upper Arlington to Ansiao | 3,825.63 mi (6,156.75 km) |
| Upper Arlington to Anta | 3,783.75 mi (6,089.36 km) |
