| Rhondda to Hutchinson (Minnesota) | 3,932.82 mi (6,329.27 km) |
| Rhondda to Hutto (Texas) | 4,761.26 mi (7,662.50 km) |
| Rhondda to Hyattsville (Maryland) | 3,521.74 mi (5,667.69 km) |
| Rhondda to Hybla Valley (Virginia) | 3,536.44 mi (5,691.35 km) |
| Rhondda to Idaho Falls (Idaho) | 4,608.21 mi (7,416.20 km) |
| Rhondda to Idylwood (Virginia) | 3,535.25 mi (5,689.43 km) |
| Rhondda to Ilchester (Maryland) | 3,502.66 mi (5,636.99 km) |
| Rhondda to Immokalee (Florida) | 4,306.57 mi (6,930.75 km) |
| Rhondda to Imperial (California) | 5,306.42 mi (8,539.86 km) |
| Rhondda to Imperial Beach (California) | 5,374.21 mi (8,648.95 km) |
| Rhondda to Independence (Kentucky) | 3,830.74 mi (6,164.98 km) |
| Rhondda to Independence (Missouri) | 4,207.56 mi (6,771.42 km) |
| Rhondda to Indian Trail (North Carolina) | 3,852.25 mi (6,199.60 km) |
| Rhondda to Indiana (Pennsylvania) | 3,538.32 mi (5,694.37 km) |
| Rhondda to Indianapolis (Indiana) | 3,856.18 mi (6,205.92 km) |
