| Alpena to Oak Harbor (Washington) | 1,850.52 mi (2,978.12 km) |
| Alpena to Oak Hills (Oregon) | 1,895.44 mi (3,050.41 km) |
| Alpena to Oak Lawn (Illinois) | 317.36 mi (510.75 km) |
| Alpena to Oak Park (California) | 2,005.27 mi (3,227.17 km) |
| Alpena to Oak Park (Illinois) | 309.81 mi (498.59 km) |
| Alpena to Oak Park (Michigan) | 180.73 mi (290.86 km) |
| Alpena to Oak Ridge (Florida) | 1,152.39 mi (1,854.59 km) |
| Alpena to Oak Ridge (New Jersey) | 530.43 mi (853.64 km) |
| Alpena to Oak Ridge (Tennessee) | 631.03 mi (1,015.55 km) |
| Alpena to Oakdale (California) | 1,983.75 mi (3,192.54 km) |
| Alpena to Oakdale (Minnesota) | 464.82 mi (748.06 km) |
| Alpena to Oakland (California) | 2,049.69 mi (3,298.66 km) |
| Alpena to Oakland (New Jersey) | 541.49 mi (871.44 km) |
| Alpena to Oakland Park (Florida) | 1,318.28 mi (2,121.56 km) |
| Alpena to Oakleaf Plantation (Florida) | 1,033.53 mi (1,663.31 km) |
