| Portimao to Ashwaubenon (Wisconsin) | 4,024.93 mi (6,477.49 km) |
| Portimao to Aspen Hill (Maryland) | 3,636.13 mi (5,851.78 km) |
| Portimao to Astoria (Oregon) | 5,421.04 mi (8,724.31 km) |
| Portimao to Atascadero (California) | 5,799.13 mi (9,332.80 km) |
| Portimao to Atascocita (Texas) | 4,836.93 mi (7,784.29 km) |
| Portimao to Atchison (Kansas) | 4,498.18 mi (7,239.13 km) |
| Portimao to Athens (Alabama) | 4,254.74 mi (6,847.35 km) |
| Portimao to Athens (Georgia) | 4,098.77 mi (6,596.34 km) |
| Portimao to Athens (Ohio) | 3,879.09 mi (6,242.80 km) |
| Portimao to Athens (Tennessee) | 4,115.45 mi (6,623.17 km) |
| Portimao to Athens (Texas) | 4,787.66 mi (7,705.00 km) |
| Portimao to Atlanta (Georgia) | 4,158.57 mi (6,692.57 km) |
| Portimao to Atlantic Beach (Florida) | 4,111.05 mi (6,616.10 km) |
| Portimao to Atlantic City (New Jersey) | 3,497.27 mi (5,628.31 km) |
| Portimao to Attleboro (Massachusetts) | 3,285.53 mi (5,287.55 km) |
