| Porthcawl to Bailey's Crossroads (Virginia) | 3,525.40 mi (5,673.59 km) |
| Porthcawl to Bainbridge (Georgia) | 4,206.95 mi (6,770.43 km) |
| Porthcawl to Bainbridge Island (Washington) | 4,693.76 mi (7,553.87 km) |
| Porthcawl to Baker (Louisiana) | 4,494.83 mi (7,233.73 km) |
| Porthcawl to Bakersfield (California) | 5,278.26 mi (8,494.54 km) |
| Porthcawl to Balch Springs (Texas) | 4,605.86 mi (7,412.41 km) |
| Porthcawl to Baldwin (New York) | 3,301.52 mi (5,313.28 km) |
| Porthcawl to Baldwin (Pennsylvania) | 3,574.41 mi (5,752.46 km) |
| Porthcawl to Baldwin Park (California) | 5,314.59 mi (8,553.00 km) |
| Porthcawl to Ballenger Creek (Maryland) | 3,513.84 mi (5,654.98 km) |
| Porthcawl to Ballwin (Missouri) | 4,077.94 mi (6,562.81 km) |
| Porthcawl to Baltimore (Maryland) | 3,483.93 mi (5,606.84 km) |
| Porthcawl to Bangor (Maine) | 2,934.78 mi (4,723.07 km) |
| Porthcawl to Banning (California) | 5,286.26 mi (8,507.41 km) |
| Porthcawl to Baraboo (Wisconsin) | 3,820.21 mi (6,148.04 km) |
