| Porthcawl to Bonita (California) | 5,362.33 mi (8,629.83 km) |
| Porthcawl to Bonita Springs (Florida) | 4,315.20 mi (6,944.65 km) |
| Porthcawl to Bonney Lake (Washington) | 4,709.42 mi (7,579.08 km) |
| Porthcawl to Boone (Iowa) | 4,041.71 mi (6,504.51 km) |
| Porthcawl to Boone (North Carolina) | 3,832.41 mi (6,167.66 km) |
| Porthcawl to Borger (Texas) | 4,640.07 mi (7,467.47 km) |
| Porthcawl to Bossier City (Louisiana) | 4,498.79 mi (7,240.10 km) |
| Porthcawl to Boston (Massachusetts) | 3,127.94 mi (5,033.94 km) |
| Porthcawl to Bostonia (California) | 5,350.94 mi (8,611.50 km) |
| Porthcawl to Bothell (Washington) | 4,677.23 mi (7,527.27 km) |
| Porthcawl to Bothell East (Washington) | 4,674.85 mi (7,523.44 km) |
| Porthcawl to Bothell West (Washington) | 4,676.42 mi (7,525.97 km) |
| Porthcawl to Boulder (Colorado) | 4,556.50 mi (7,332.98 km) |
| Porthcawl to Boulder City (Nevada) | 5,114.49 mi (8,230.98 km) |
| Porthcawl to Bound Brook (New Jersey) | 3,343.56 mi (5,380.93 km) |
