| Portishead to Black Forest (Colorado) | 4,618.48 mi (7,432.72 km) |
| Portishead to Blackfoot (Idaho) | 4,660.78 mi (7,500.80 km) |
| Portishead to Blackhawk (California) | 5,258.34 mi (8,462.48 km) |
| Portishead to Blacksburg (Virginia) | 3,772.38 mi (6,071.05 km) |
| Portishead to Blackwells Mills (New Jersey) | 3,388.03 mi (5,452.51 km) |
| Portishead to Blaine (Minnesota) | 3,905.90 mi (6,285.93 km) |
| Portishead to Bloomingdale (Florida) | 4,298.53 mi (6,917.82 km) |
| Portishead to Bloomingdale (Illinois) | 3,861.68 mi (6,214.77 km) |
| Portishead to Bloomington (California) | 5,327.56 mi (8,573.89 km) |
| Portishead to Bloomington (Illinois) | 3,963.80 mi (6,379.13 km) |
| Portishead to Bloomington (Indiana) | 3,929.09 mi (6,323.26 km) |
| Portishead to Bloomington (Minnesota) | 3,925.42 mi (6,317.36 km) |
| Portishead to Bloomsburg (Pennsylvania) | 3,441.64 mi (5,538.78 km) |
| Portishead to Blue Ash (Ohio) | 3,839.94 mi (6,179.78 km) |
| Portishead to Blue Island (Illinois) | 3,859.26 mi (6,210.88 km) |
