| Harrison to Oak Harbor (Washington) | 2,413.13 mi (3,883.56 km) |
| Harrison to Oak Hills (Oregon) | 2,451.55 mi (3,945.38 km) |
| Harrison to Oak Lawn (Illinois) | 728.42 mi (1,172.29 km) |
| Harrison to Oak Park (California) | 2,482.58 mi (3,995.32 km) |
| Harrison to Oak Park (Illinois) | 730.24 mi (1,175.20 km) |
| Harrison to Oak Park (Michigan) | 497.62 mi (800.84 km) |
| Harrison to Oak Ridge (Florida) | 970.06 mi (1,561.16 km) |
| Harrison to Oak Ridge (New Jersey) | 40.55 mi (65.25 km) |
| Harrison to Oak Ridge (Tennessee) | 669.51 mi (1,077.47 km) |
| Harrison to Oakdale (California) | 2,495.93 mi (4,016.82 km) |
| Harrison to Oakdale (Minnesota) | 1,007.49 mi (1,621.39 km) |
| Harrison to Oakland (California) | 2,565.34 mi (4,128.51 km) |
| Harrison to Oakland (New Jersey) | 27.19 mi (43.75 km) |
| Harrison to Oakland Park (Florida) | 1,089.66 mi (1,753.65 km) |
| Harrison to Oakleaf Plantation (Florida) | 876.71 mi (1,410.92 km) |
