| Pontypridd to Jeffersonville (Indiana) | 3,908.69 mi (6,290.44 km) |
| Pontypridd to Jenison (Michigan) | 3,705.18 mi (5,962.92 km) |
| Pontypridd to Jenks (Oklahoma) | 4,425.53 mi (7,122.20 km) |
| Pontypridd to Jennings (Missouri) | 4,070.79 mi (6,551.30 km) |
| Pontypridd to Jensen Beach (Florida) | 4,218.70 mi (6,789.34 km) |
| Pontypridd to Jericho (New York) | 3,305.07 mi (5,319.00 km) |
| Pontypridd to Jerome (Idaho) | 4,731.47 mi (7,614.57 km) |
| Pontypridd to Jersey City (New Jersey) | 3,329.74 mi (5,358.70 km) |
| Pontypridd to Jessup (Maryland) | 3,509.50 mi (5,647.99 km) |
| Pontypridd to Johns Creek (Georgia) | 4,051.77 mi (6,520.70 km) |
| Pontypridd to Johnson City (New York) | 3,347.61 mi (5,387.46 km) |
| Pontypridd to Johnson City (Tennessee) | 3,867.51 mi (6,224.16 km) |
| Pontypridd to Johnston (Iowa) | 4,062.02 mi (6,537.18 km) |
| Pontypridd to Johnstown (Colorado) | 4,536.51 mi (7,300.80 km) |
| Pontypridd to Johnstown (Pennsylvania) | 3,545.15 mi (5,705.36 km) |
