| Llanelli to Jacksonville (Texas) | 4,566.49 mi (7,349.06 km) |
| Llanelli to Jacksonville Beach (Florida) | 4,082.04 mi (6,569.40 km) |
| Llanelli to James Island (South Carolina) | 3,901.46 mi (6,278.79 km) |
| Llanelli to Jamestown (New York) | 3,445.86 mi (5,545.57 km) |
| Llanelli to Jamestown (North Dakota) | 3,962.59 mi (6,377.17 km) |
| Llanelli to Janesville (Wisconsin) | 3,803.66 mi (6,121.41 km) |
| Llanelli to Jasmine Estates (Florida) | 4,234.31 mi (6,814.47 km) |
| Llanelli to Jasper (Alabama) | 4,150.91 mi (6,680.25 km) |
| Llanelli to Jasper (Indiana) | 3,920.64 mi (6,309.67 km) |
| Llanelli to Jefferson (Georgia) | 3,986.67 mi (6,415.92 km) |
| Llanelli to Jefferson (Louisiana) | 4,461.49 mi (7,180.07 km) |
| Llanelli to Jefferson City (Missouri) | 4,118.30 mi (6,627.76 km) |
| Llanelli to Jefferson Hills (Pennsylvania) | 3,552.59 mi (5,717.34 km) |
| Llanelli to Jefferson Valley-Yorktown (New York) | 3,257.92 mi (5,243.11 km) |
| Llanelli to Jeffersontown (Kentucky) | 3,874.67 mi (6,235.68 km) |
