| Rhondda to Enumclaw (Washington) | 4,703.51 mi (7,569.57 km) |
| Rhondda to Ephrata (Pennsylvania) | 3,436.35 mi (5,530.27 km) |
| Rhondda to Erie (Colorado) | 4,552.46 mi (7,326.48 km) |
| Rhondda to Erie (Pennsylvania) | 3,510.09 mi (5,648.95 km) |
| Rhondda to Erlanger (Kentucky) | 3,829.47 mi (6,162.94 km) |
| Rhondda to Escanaba (Michigan) | 3,625.13 mi (5,834.08 km) |
| Rhondda to Escondido (California) | 5,340.90 mi (8,595.35 km) |
| Rhondda to Española (New Mexico) | 4,799.57 mi (7,724.15 km) |
| Rhondda to Essex (Maryland) | 3,485.67 mi (5,609.64 km) |
| Rhondda to Essex Junction (Vermont) | 3,131.99 mi (5,040.45 km) |
| Rhondda to Estelle (Louisiana) | 4,497.09 mi (7,237.36 km) |
| Rhondda to Estero (Florida) | 4,322.15 mi (6,955.83 km) |
| Rhondda to Euclid (Ohio) | 3,590.74 mi (5,778.75 km) |
| Rhondda to Eufaula (Alabama) | 4,190.56 mi (6,744.05 km) |
| Rhondda to Eugene (Oregon) | 4,912.26 mi (7,905.52 km) |
