| Mortara to Oak Harbor (Washington) | 5,337.90 mi (8,590.52 km) |
| Mortara to Oak Hills (Oregon) | 5,503.65 mi (8,857.27 km) |
| Mortara to Oak Lawn (Illinois) | 4,532.77 mi (7,294.78 km) |
| Mortara to Oak Park (California) | 6,042.72 mi (9,724.82 km) |
| Mortara to Oak Park (Illinois) | 4,526.57 mi (7,284.81 km) |
| Mortara to Oak Park (Michigan) | 4,317.38 mi (6,948.16 km) |
| Mortara to Oak Ridge (Florida) | 4,858.62 mi (7,819.20 km) |
| Mortara to Oak Ridge (New Jersey) | 4,013.23 mi (6,458.67 km) |
| Mortara to Oak Ridge (Tennessee) | 4,646.07 mi (7,477.12 km) |
| Mortara to Oakdale (California) | 5,900.73 mi (9,496.31 km) |
| Mortara to Oakdale (Minnesota) | 4,585.09 mi (7,378.98 km) |
| Mortara to Oakland (California) | 5,939.36 mi (9,558.47 km) |
| Mortara to Oakland (New Jersey) | 4,002.26 mi (6,441.01 km) |
| Mortara to Oakland Park (Florida) | 4,906.31 mi (7,895.94 km) |
| Mortara to Oakleaf Plantation (Florida) | 4,799.89 mi (7,724.67 km) |
