| Porthcawl to Black Forest (Colorado) | 4,585.54 mi (7,379.72 km) |
| Porthcawl to Blackfoot (Idaho) | 4,631.16 mi (7,453.13 km) |
| Porthcawl to Blackhawk (California) | 5,230.02 mi (8,416.90 km) |
| Porthcawl to Blacksburg (Virginia) | 3,734.32 mi (6,009.80 km) |
| Porthcawl to Blackwells Mills (New Jersey) | 3,349.86 mi (5,391.08 km) |
| Porthcawl to Blaine (Minnesota) | 3,872.22 mi (6,231.74 km) |
| Porthcawl to Bloomingdale (Florida) | 4,259.34 mi (6,854.74 km) |
| Porthcawl to Bloomingdale (Illinois) | 3,825.99 mi (6,157.33 km) |
| Porthcawl to Bloomington (California) | 5,296.77 mi (8,524.33 km) |
| Porthcawl to Bloomington (Illinois) | 3,927.87 mi (6,321.30 km) |
| Porthcawl to Bloomington (Indiana) | 3,892.39 mi (6,264.20 km) |
| Porthcawl to Bloomington (Minnesota) | 3,891.66 mi (6,263.02 km) |
| Porthcawl to Bloomsburg (Pennsylvania) | 3,403.83 mi (5,477.93 km) |
| Porthcawl to Blue Ash (Ohio) | 3,802.90 mi (6,120.18 km) |
| Porthcawl to Blue Island (Illinois) | 3,823.41 mi (6,153.19 km) |
