| Seabrook to Alenquer | 3,550.40 mi (5,713.82 km) |
| Seabrook to Alfena | 3,517.40 mi (5,660.71 km) |
| Seabrook to Alijo | 3,567.14 mi (5,740.75 km) |
| Seabrook to Aljustrel | 3,623.73 mi (5,831.83 km) |
| Seabrook to Almada | 3,553.36 mi (5,718.58 km) |
| Seabrook to Almargem | 3,543.24 mi (5,702.29 km) |
| Seabrook to Almeirim | 3,566.12 mi (5,739.11 km) |
| Seabrook to Amadora | 3,548.21 mi (5,710.28 km) |
| Seabrook to Amarante | 3,538.84 mi (5,695.21 km) |
| Seabrook to Amares | 3,517.15 mi (5,660.30 km) |
| Seabrook to Amora | 3,556.78 mi (5,724.08 km) |
| Seabrook to Anadia | 3,542.49 mi (5,701.09 km) |
| Seabrook to Angra do Heroismo | 2,637.86 mi (4,245.22 km) |
| Seabrook to Ansiao | 3,556.02 mi (5,722.87 km) |
| Seabrook to Anta | 3,518.42 mi (5,662.35 km) |
