| Pontneddfechan to Iselin (New Jersey) | 3,333.27 mi (5,364.38 km) |
| Pontneddfechan to Isla Vista (California) | 5,349.22 mi (8,608.74 km) |
| Pontneddfechan to Issaquah (Washington) | 4,673.90 mi (7,521.92 km) |
| Pontneddfechan to Ithaca (New York) | 3,342.52 mi (5,379.27 km) |
| Pontneddfechan to Ives Estates (Florida) | 4,268.59 mi (6,869.64 km) |
| Pontneddfechan to Jackson (Michigan) | 3,665.33 mi (5,898.79 km) |
| Pontneddfechan to Jackson (Mississippi) | 4,367.71 mi (7,029.15 km) |
| Pontneddfechan to Jackson (Missouri) | 4,097.19 mi (6,593.79 km) |
| Pontneddfechan to Jackson (Tennessee) | 4,148.08 mi (6,675.69 km) |
| Pontneddfechan to Jackson (Wyoming) | 4,556.43 mi (7,332.87 km) |
| Pontneddfechan to Jacksonville (Alabama) | 4,113.06 mi (6,619.33 km) |
| Pontneddfechan to Jacksonville (Arkansas) | 4,317.00 mi (6,947.53 km) |
| Pontneddfechan to Jacksonville (Florida) | 4,113.92 mi (6,620.72 km) |
| Pontneddfechan to Jacksonville (Illinois) | 4,007.73 mi (6,449.82 km) |
| Pontneddfechan to Jacksonville (North Carolina) | 3,723.59 mi (5,992.55 km) |
