| Cwmbran to Port Chester (New York) | 3,313.26 mi (5,332.17 km) |
| Cwmbran to Port Hueneme (California) | 5,365.13 mi (8,634.34 km) |
| Cwmbran to Port Huron (Michigan) | 3,580.87 mi (5,762.86 km) |
| Cwmbran to Port Lavaca (Texas) | 4,839.24 mi (7,788.00 km) |
| Cwmbran to Port Neches (Texas) | 4,661.67 mi (7,502.23 km) |
| Cwmbran to Port Orange (Florida) | 4,171.66 mi (6,713.64 km) |
| Cwmbran to Port Orchard (Washington) | 4,713.10 mi (7,585.01 km) |
| Cwmbran to Port Royal (South Carolina) | 3,999.89 mi (6,437.20 km) |
| Cwmbran to Port Salerno (Florida) | 4,234.44 mi (6,814.67 km) |
| Cwmbran to Port St. John (Florida) | 4,194.45 mi (6,750.31 km) |
| Cwmbran to Port St. Lucie (Florida) | 4,236.20 mi (6,817.51 km) |
| Cwmbran to Port Washington (New York) | 3,321.20 mi (5,344.95 km) |
| Cwmbran to Port Washington (Wisconsin) | 3,773.53 mi (6,072.91 km) |
| Cwmbran to Port Wentworth (Georgia) | 4,028.37 mi (6,483.03 km) |
| Cwmbran to Portage (Indiana) | 3,828.09 mi (6,160.72 km) |
