| Port Talbot to Jacksonville (Texas) | 4,583.40 mi (7,376.26 km) |
| Port Talbot to Jacksonville Beach (Florida) | 4,098.61 mi (6,596.08 km) |
| Port Talbot to James Island (South Carolina) | 3,918.09 mi (6,305.56 km) |
| Port Talbot to Jamestown (New York) | 3,462.75 mi (5,572.76 km) |
| Port Talbot to Jamestown (North Dakota) | 3,979.02 mi (6,403.61 km) |
| Port Talbot to Janesville (Wisconsin) | 3,820.52 mi (6,148.53 km) |
| Port Talbot to Jasmine Estates (Florida) | 4,250.85 mi (6,841.08 km) |
| Port Talbot to Jasper (Alabama) | 4,167.77 mi (6,707.38 km) |
| Port Talbot to Jasper (Indiana) | 3,937.55 mi (6,336.87 km) |
| Port Talbot to Jefferson (Georgia) | 4,003.46 mi (6,442.95 km) |
| Port Talbot to Jefferson (Louisiana) | 4,478.32 mi (7,207.15 km) |
| Port Talbot to Jefferson City (Missouri) | 4,135.19 mi (6,654.94 km) |
| Port Talbot to Jefferson Hills (Pennsylvania) | 3,569.47 mi (5,744.50 km) |
| Port Talbot to Jefferson Valley-Yorktown (New York) | 3,274.73 mi (5,270.16 km) |
| Port Talbot to Jeffersontown (Kentucky) | 3,891.57 mi (6,262.88 km) |
