| Quarteira to Oak Harbor (Washington) | 5,301.11 mi (8,531.31 km) |
| Quarteira to Oak Hills (Oregon) | 5,435.97 mi (8,748.35 km) |
| Quarteira to Oak Lawn (Illinois) | 4,108.44 mi (6,611.90 km) |
| Quarteira to Oak Park (California) | 5,798.95 mi (9,332.50 km) |
| Quarteira to Oak Park (Illinois) | 4,105.26 mi (6,606.78 km) |
| Quarteira to Oak Park (Michigan) | 3,872.47 mi (6,232.14 km) |
| Quarteira to Oak Ridge (Florida) | 4,196.79 mi (6,754.09 km) |
| Quarteira to Oak Ridge (New Jersey) | 3,485.82 mi (5,609.89 km) |
| Quarteira to Oak Ridge (Tennessee) | 4,108.26 mi (6,611.61 km) |
| Quarteira to Oakdale (California) | 5,721.24 mi (9,207.45 km) |
| Quarteira to Oakdale (Minnesota) | 4,251.38 mi (6,841.94 km) |
| Quarteira to Oakland (California) | 5,775.06 mi (9,294.06 km) |
| Quarteira to Oakland (New Jersey) | 3,473.18 mi (5,589.54 km) |
| Quarteira to Oakland Park (Florida) | 4,206.55 mi (6,769.79 km) |
| Quarteira to Oakleaf Plantation (Florida) | 4,163.02 mi (6,699.74 km) |
