| Port Talbot to Jeffersonville (Indiana) | 3,890.71 mi (6,261.49 km) |
| Port Talbot to Jenison (Michigan) | 3,687.83 mi (5,934.99 km) |
| Port Talbot to Jenks (Oklahoma) | 4,408.24 mi (7,094.37 km) |
| Port Talbot to Jennings (Missouri) | 4,053.27 mi (6,523.10 km) |
| Port Talbot to Jensen Beach (Florida) | 4,199.41 mi (6,758.30 km) |
| Port Talbot to Jericho (New York) | 3,286.44 mi (5,289.02 km) |
| Port Talbot to Jerome (Idaho) | 4,717.54 mi (7,592.15 km) |
| Port Talbot to Jersey City (New Jersey) | 3,311.13 mi (5,328.75 km) |
| Port Talbot to Jessup (Maryland) | 3,490.90 mi (5,618.07 km) |
| Port Talbot to Johns Creek (Georgia) | 4,033.21 mi (6,490.82 km) |
| Port Talbot to Johnson City (New York) | 3,329.32 mi (5,358.02 km) |
| Port Talbot to Johnson City (Tennessee) | 3,849.03 mi (6,194.42 km) |
| Port Talbot to Johnston (Iowa) | 4,045.27 mi (6,510.23 km) |
| Port Talbot to Johnstown (Colorado) | 4,520.87 mi (7,275.64 km) |
| Port Talbot to Johnstown (Pennsylvania) | 3,526.85 mi (5,675.91 km) |
