| Watertown to Alenquer | 3,381.89 mi (5,442.62 km) |
| Watertown to Alfena | 3,334.19 mi (5,365.86 km) |
| Watertown to Alijo | 3,381.49 mi (5,441.98 km) |
| Watertown to Aljustrel | 3,460.20 mi (5,568.66 km) |
| Watertown to Almada | 3,387.49 mi (5,451.65 km) |
| Watertown to Almargem | 3,376.59 mi (5,434.10 km) |
| Watertown to Almeirim | 3,395.74 mi (5,464.92 km) |
| Watertown to Amadora | 3,382.19 mi (5,443.10 km) |
| Watertown to Amarante | 3,354.49 mi (5,398.52 km) |
| Watertown to Amares | 3,331.19 mi (5,361.04 km) |
| Watertown to Amora | 3,391.15 mi (5,457.53 km) |
| Watertown to Anadia | 3,364.06 mi (5,413.94 km) |
| Watertown to Angra do Heroismo | 2,516.54 mi (4,049.97 km) |
| Watertown to Ansiao | 3,380.79 mi (5,440.86 km) |
| Watertown to Anta | 3,336.85 mi (5,370.14 km) |
