| Pontypridd to Jacksonville (Texas) | 4,601.22 mi (7,404.95 km) |
| Pontypridd to Jacksonville Beach (Florida) | 4,117.67 mi (6,626.74 km) |
| Pontypridd to James Island (South Carolina) | 3,937.06 mi (6,336.08 km) |
| Pontypridd to Jamestown (New York) | 3,480.80 mi (5,601.81 km) |
| Pontypridd to Jamestown (North Dakota) | 3,994.32 mi (6,428.24 km) |
| Pontypridd to Janesville (Wisconsin) | 3,837.60 mi (6,176.02 km) |
| Pontypridd to Jasmine Estates (Florida) | 4,269.95 mi (6,871.83 km) |
| Pontypridd to Jasper (Alabama) | 4,186.12 mi (6,736.91 km) |
| Pontypridd to Jasper (Indiana) | 3,955.42 mi (6,365.63 km) |
| Pontypridd to Jefferson (Georgia) | 4,022.06 mi (6,472.89 km) |
| Pontypridd to Jefferson (Louisiana) | 4,496.79 mi (7,236.88 km) |
| Pontypridd to Jefferson City (Missouri) | 4,152.54 mi (6,682.87 km) |
| Pontypridd to Jefferson Hills (Pennsylvania) | 3,587.69 mi (5,773.83 km) |
| Pontypridd to Jefferson Valley-Yorktown (New York) | 3,293.28 mi (5,300.02 km) |
| Pontypridd to Jeffersontown (Kentucky) | 3,909.59 mi (6,291.87 km) |
