| Porthcawl to Barberton (Ohio) | 3,612.24 mi (5,813.34 km) |
| Porthcawl to Bardstown (Kentucky) | 3,912.06 mi (6,295.85 km) |
| Porthcawl to Barrington (Illinois) | 3,818.32 mi (6,144.99 km) |
| Porthcawl to Barstow (California) | 5,239.86 mi (8,432.74 km) |
| Porthcawl to Bartlesville (Oklahoma) | 4,377.98 mi (7,045.67 km) |
| Porthcawl to Bartlett (Illinois) | 3,829.14 mi (6,162.41 km) |
| Porthcawl to Bartlett (Tennessee) | 4,210.62 mi (6,776.34 km) |
| Porthcawl to Bartow (Florida) | 4,240.23 mi (6,823.99 km) |
| Porthcawl to Batavia (Illinois) | 3,839.19 mi (6,178.58 km) |
| Porthcawl to Batavia (New York) | 3,389.16 mi (5,454.32 km) |
| Porthcawl to Batesville (Arkansas) | 4,256.49 mi (6,850.16 km) |
| Porthcawl to Baton Rouge (Louisiana) | 4,500.82 mi (7,243.38 km) |
| Porthcawl to Battle Creek (Michigan) | 3,698.99 mi (5,952.94 km) |
| Porthcawl to Battle Ground (Washington) | 4,798.29 mi (7,722.10 km) |
| Porthcawl to Bay City (Michigan) | 3,589.93 mi (5,777.43 km) |
