| Cwmbran to Oak Harbor (Washington) | 4,668.53 mi (7,513.28 km) |
| Cwmbran to Oak Hills (Oregon) | 4,829.55 mi (7,772.42 km) |
| Cwmbran to Oak Lawn (Illinois) | 3,844.38 mi (6,186.93 km) |
| Cwmbran to Oak Park (California) | 5,349.55 mi (8,609.27 km) |
| Cwmbran to Oak Park (Illinois) | 3,837.88 mi (6,176.47 km) |
| Cwmbran to Oak Park (Michigan) | 3,632.72 mi (5,846.30 km) |
| Cwmbran to Oak Ridge (Florida) | 4,220.19 mi (6,791.74 km) |
| Cwmbran to Oak Ridge (New Jersey) | 3,346.13 mi (5,385.07 km) |
| Cwmbran to Oak Ridge (Tennessee) | 3,975.33 mi (6,397.68 km) |
| Cwmbran to Oakdale (California) | 5,212.70 mi (8,389.03 km) |
| Cwmbran to Oakdale (Minnesota) | 3,889.80 mi (6,260.03 km) |
| Cwmbran to Oakland (California) | 5,253.15 mi (8,454.12 km) |
| Cwmbran to Oakland (New Jersey) | 3,335.66 mi (5,368.23 km) |
| Cwmbran to Oakland Park (Florida) | 4,281.46 mi (6,890.35 km) |
| Cwmbran to Oakleaf Plantation (Florida) | 4,153.81 mi (6,684.91 km) |
