| Portimao to Black Forest (Colorado) | 4,952.88 mi (7,970.90 km) |
| Portimao to Blackfoot (Idaho) | 5,117.48 mi (8,235.78 km) |
| Portimao to Blackhawk (California) | 5,740.77 mi (9,238.87 km) |
| Portimao to Blacksburg (Virginia) | 3,853.08 mi (6,200.94 km) |
| Portimao to Blackwells Mills (New Jersey) | 3,479.47 mi (5,599.67 km) |
| Portimao to Blaine (Minnesota) | 4,234.75 mi (6,815.17 km) |
| Portimao to Bloomingdale (Florida) | 4,237.37 mi (6,819.38 km) |
| Portimao to Bloomingdale (Illinois) | 4,094.66 mi (6,589.72 km) |
| Portimao to Bloomington (California) | 5,723.86 mi (9,211.66 km) |
| Portimao to Bloomington (Illinois) | 4,178.94 mi (6,725.36 km) |
| Portimao to Bloomington (Indiana) | 4,100.12 mi (6,598.50 km) |
| Portimao to Bloomington (Minnesota) | 4,249.50 mi (6,838.91 km) |
| Portimao to Bloomsburg (Pennsylvania) | 3,559.53 mi (5,728.52 km) |
| Portimao to Blue Ash (Ohio) | 3,993.29 mi (6,426.58 km) |
| Portimao to Blue Island (Illinois) | 4,083.74 mi (6,572.14 km) |
