| Portimao to Buenaventura Lakes (Florida) | 4,173.65 mi (6,716.84 km) |
| Portimao to Buffalo (Minnesota) | 4,263.37 mi (6,861.23 km) |
| Portimao to Buffalo (New York) | 3,632.54 mi (5,846.00 km) |
| Portimao to Buffalo Grove (Illinois) | 4,082.52 mi (6,570.19 km) |
| Portimao to Buford (Georgia) | 4,125.38 mi (6,639.15 km) |
| Portimao to Bull Run (Virginia) | 3,665.87 mi (5,899.65 km) |
| Portimao to Bullhead City (Arizona) | 5,552.16 mi (8,935.33 km) |
| Portimao to Burbank (California) | 5,758.07 mi (9,266.71 km) |
| Portimao to Burbank (Illinois) | 4,085.41 mi (6,574.83 km) |
| Portimao to Burien (Washington) | 5,309.86 mi (8,545.39 km) |
| Portimao to Burkburnett (Texas) | 4,853.81 mi (7,811.45 km) |
| Portimao to Burke (Virginia) | 3,653.04 mi (5,879.00 km) |
| Portimao to Burke Centre (Virginia) | 3,654.55 mi (5,881.44 km) |
| Portimao to Burleson (Texas) | 4,850.70 mi (7,806.45 km) |
| Portimao to Burley (Idaho) | 5,203.31 mi (8,373.91 km) |
