| Portishead to Barberton (Ohio) | 3,649.30 mi (5,872.97 km) |
| Portishead to Bardstown (Kentucky) | 3,949.25 mi (6,355.70 km) |
| Portishead to Barrington (Illinois) | 3,853.94 mi (6,202.32 km) |
| Portishead to Barstow (California) | 5,270.54 mi (8,482.12 km) |
| Portishead to Bartlesville (Oklahoma) | 4,413.51 mi (7,102.85 km) |
| Portishead to Bartlett (Illinois) | 3,864.80 mi (6,219.79 km) |
| Portishead to Bartlett (Tennessee) | 4,247.64 mi (6,835.92 km) |
| Portishead to Bartow (Florida) | 4,279.46 mi (6,887.13 km) |
| Portishead to Batavia (Illinois) | 3,874.86 mi (6,235.99 km) |
| Portishead to Batavia (New York) | 3,426.22 mi (5,513.97 km) |
| Portishead to Batesville (Arkansas) | 4,293.08 mi (6,909.05 km) |
| Portishead to Baton Rouge (Louisiana) | 4,538.54 mi (7,304.08 km) |
| Portishead to Battle Creek (Michigan) | 3,735.09 mi (6,011.05 km) |
| Portishead to Battle Ground (Washington) | 4,823.96 mi (7,763.42 km) |
| Portishead to Bay City (Michigan) | 3,625.90 mi (5,835.32 km) |
