| Porthcawl to Bountiful (Utah) | 4,738.92 mi (7,626.56 km) |
| Porthcawl to Bourbonnais (Illinois) | 3,852.75 mi (6,200.40 km) |
| Porthcawl to Bowie (Maryland) | 3,504.55 mi (5,640.03 km) |
| Porthcawl to Bowling Green (Kentucky) | 3,991.35 mi (6,423.45 km) |
| Porthcawl to Bowling Green (Ohio) | 3,677.61 mi (5,918.55 km) |
| Porthcawl to Box Elder (South Dakota) | 4,274.12 mi (6,878.53 km) |
| Porthcawl to Boynton Beach (Florida) | 4,233.93 mi (6,813.85 km) |
| Porthcawl to Bozeman (Montana) | 4,459.07 mi (7,176.18 km) |
| Porthcawl to Bradenton (Florida) | 4,291.97 mi (6,907.25 km) |
| Porthcawl to Bradfordville (Florida) | 4,207.88 mi (6,771.92 km) |
| Porthcawl to Bradley (Illinois) | 3,852.32 mi (6,199.70 km) |
| Porthcawl to Bradley Gardens (New Jersey) | 3,348.75 mi (5,389.30 km) |
| Porthcawl to Brainerd (Minnesota) | 3,854.13 mi (6,202.61 km) |
| Porthcawl to Brambleton (Virginia) | 3,536.12 mi (5,690.84 km) |
| Porthcawl to Brandermill (Virginia) | 3,610.22 mi (5,810.09 km) |
