| Rhondda to Oxford (Alabama) | 4,137.86 mi (6,659.24 km) |
| Rhondda to Oxford (Mississippi) | 4,249.25 mi (6,838.51 km) |
| Rhondda to Oxford (Ohio) | 3,813.02 mi (6,136.46 km) |
| Rhondda to Oxnard (California) | 5,351.16 mi (8,611.85 km) |
| Rhondda to Oxon Hill (Maryland) | 3,530.15 mi (5,681.23 km) |
| Rhondda to Ozark (Alabama) | 4,233.67 mi (6,813.43 km) |
| Rhondda to Ozark (Missouri) | 4,263.97 mi (6,862.19 km) |
| Rhondda to Pace (Florida) | 4,337.61 mi (6,980.71 km) |
| Rhondda to Pacific Grove (California) | 5,300.88 mi (8,530.94 km) |
| Rhondda to Pacifica (California) | 5,261.09 mi (8,466.91 km) |
| Rhondda to Paducah (Kentucky) | 4,082.46 mi (6,570.09 km) |
| Rhondda to Pahrump (Nevada) | 5,132.49 mi (8,259.95 km) |
| Rhondda to Painesville (Ohio) | 3,574.30 mi (5,752.29 km) |
| Rhondda to Palatine (Illinois) | 3,822.94 mi (6,152.42 km) |
| Rhondda to Palatka (Florida) | 4,156.40 mi (6,689.09 km) |
