| Upminster to Alenquer | 972.60 mi (1,565.25 km) |
| Upminster to Alfena | 825.15 mi (1,327.95 km) |
| Upminster to Alijo | 798.89 mi (1,285.69 km) |
| Upminster to Aljustrel | 1,027.33 mi (1,653.33 km) |
| Upminster to Almada | 999.02 mi (1,607.77 km) |
| Upminster to Almargem | 991.00 mi (1,594.86 km) |
| Upminster to Almeirim | 954.41 mi (1,535.98 km) |
| Upminster to Amadora | 997.34 mi (1,605.06 km) |
| Upminster to Amarante | 812.67 mi (1,307.86 km) |
| Upminster to Amares | 797.35 mi (1,283.21 km) |
| Upminster to Amora | 1,001.56 mi (1,611.85 km) |
| Upminster to Anadia | 872.85 mi (1,404.71 km) |
| Upminster to Angra do Heroismo | 1,593.93 mi (2,565.18 km) |
| Upminster to Ansiao | 905.21 mi (1,456.80 km) |
| Upminster to Anta | 841.71 mi (1,354.60 km) |
