| Rhondda to Iselin (New Jersey) | 3,342.96 mi (5,379.97 km) |
| Rhondda to Isla Vista (California) | 5,361.04 mi (8,627.77 km) |
| Rhondda to Issaquah (Washington) | 4,685.98 mi (7,541.35 km) |
| Rhondda to Ithaca (New York) | 3,352.61 mi (5,395.51 km) |
| Rhondda to Ives Estates (Florida) | 4,277.02 mi (6,883.21 km) |
| Rhondda to Jackson (Michigan) | 3,675.92 mi (5,915.81 km) |
| Rhondda to Jackson (Mississippi) | 4,377.76 mi (7,045.33 km) |
| Rhondda to Jackson (Missouri) | 4,107.66 mi (6,610.63 km) |
| Rhondda to Jackson (Tennessee) | 4,158.34 mi (6,692.19 km) |
| Rhondda to Jackson (Wyoming) | 4,568.25 mi (7,351.88 km) |
| Rhondda to Jacksonville (Alabama) | 4,122.89 mi (6,635.16 km) |
| Rhondda to Jacksonville (Arkansas) | 4,327.42 mi (6,964.31 km) |
| Rhondda to Jacksonville (Florida) | 4,123.01 mi (6,635.35 km) |
| Rhondda to Jacksonville (Illinois) | 4,018.44 mi (6,467.06 km) |
| Rhondda to Jacksonville (North Carolina) | 3,732.80 mi (6,007.35 km) |
