| Mountain Ash to Oxford (Alabama) | 4,138.08 mi (6,659.59 km) |
| Mountain Ash to Oxford (Mississippi) | 4,249.21 mi (6,838.45 km) |
| Mountain Ash to Oxford (Ohio) | 3,812.87 mi (6,136.22 km) |
| Mountain Ash to Oxnard (California) | 5,349.48 mi (8,609.16 km) |
| Mountain Ash to Oxon Hill (Maryland) | 3,530.48 mi (5,681.75 km) |
| Mountain Ash to Ozark (Alabama) | 4,234.05 mi (6,814.04 km) |
| Mountain Ash to Ozark (Missouri) | 4,263.54 mi (6,861.51 km) |
| Mountain Ash to Pace (Florida) | 4,337.96 mi (6,981.27 km) |
| Mountain Ash to Pacific Grove (California) | 5,298.95 mi (8,527.84 km) |
| Mountain Ash to Pacifica (California) | 5,259.09 mi (8,463.69 km) |
| Mountain Ash to Paducah (Kentucky) | 4,082.29 mi (6,569.81 km) |
| Mountain Ash to Pahrump (Nevada) | 5,130.90 mi (8,257.38 km) |
| Mountain Ash to Painesville (Ohio) | 3,574.16 mi (5,752.05 km) |
| Mountain Ash to Palatine (Illinois) | 3,822.42 mi (6,151.59 km) |
| Mountain Ash to Palatka (Florida) | 4,157.14 mi (6,690.26 km) |
