| Llantwit Major to Oak Harbor (Washington) | 4,669.58 mi (7,514.96 km) |
| Llantwit Major to Oak Hills (Oregon) | 4,829.88 mi (7,772.94 km) |
| Llantwit Major to Oak Lawn (Illinois) | 3,834.20 mi (6,170.55 km) |
| Llantwit Major to Oak Park (California) | 5,345.61 mi (8,602.93 km) |
| Llantwit Major to Oak Park (Illinois) | 3,827.77 mi (6,160.21 km) |
| Llantwit Major to Oak Park (Michigan) | 3,621.71 mi (5,828.58 km) |
| Llantwit Major to Oak Ridge (Florida) | 4,204.02 mi (6,765.72 km) |
| Llantwit Major to Oak Ridge (New Jersey) | 3,332.46 mi (5,363.07 km) |
| Llantwit Major to Oak Ridge (Tennessee) | 3,962.22 mi (6,376.57 km) |
| Llantwit Major to Oakdale (California) | 5,210.34 mi (8,385.23 km) |
| Llantwit Major to Oakdale (Minnesota) | 3,882.16 mi (6,247.74 km) |
| Llantwit Major to Oakland (California) | 5,251.21 mi (8,451.00 km) |
| Llantwit Major to Oakland (New Jersey) | 3,321.93 mi (5,346.13 km) |
| Llantwit Major to Oakland Park (Florida) | 4,264.34 mi (6,862.80 km) |
| Llantwit Major to Oakleaf Plantation (Florida) | 4,138.24 mi (6,659.85 km) |
