| Johnston to Alenquer | 4,270.10 mi (6,872.07 km) |
| Johnston to Alfena | 4,211.83 mi (6,778.28 km) |
| Johnston to Alijo | 4,256.76 mi (6,850.60 km) |
| Johnston to Aljustrel | 4,351.23 mi (7,002.63 km) |
| Johnston to Almada | 4,277.41 mi (6,883.83 km) |
| Johnston to Almargem | 4,266.07 mi (6,865.57 km) |
| Johnston to Almeirim | 4,282.61 mi (6,892.20 km) |
| Johnston to Amadora | 4,272.04 mi (6,875.18 km) |
| Johnston to Amarante | 4,231.04 mi (6,809.21 km) |
| Johnston to Amares | 4,206.58 mi (6,769.84 km) |
| Johnston to Amora | 4,281.21 mi (6,889.94 km) |
| Johnston to Anadia | 4,245.27 mi (6,832.11 km) |
| Johnston to Angra do Heroismo | 3,428.13 mi (5,517.04 km) |
| Johnston to Ansiao | 4,264.29 mi (6,862.72 km) |
| Johnston to Anta | 4,215.79 mi (6,784.66 km) |
