| Park Forest to Oak Grove (South Carolina) | 629.25 mi (1,012.68 km) |
| Park Forest to Oak Harbor (Washington) | 1,757.45 mi (2,828.35 km) |
| Park Forest to Oak Hills (Oregon) | 1,769.24 mi (2,847.31 km) |
| Park Forest to Oak Lawn (Illinois) | 16.40 mi (26.40 km) |
| Park Forest to Oak Park (California) | 1,758.65 mi (2,830.27 km) |
| Park Forest to Oak Park (Illinois) | 28.52 mi (45.90 km) |
| Park Forest to Oak Park (Michigan) | 241.11 mi (388.03 km) |
| Park Forest to Oak Ridge (Florida) | 965.67 mi (1,554.09 km) |
| Park Forest to Oak Ridge (New Jersey) | 685.13 mi (1,102.60 km) |
| Park Forest to Oak Ridge (Tennessee) | 422.75 mi (680.35 km) |
| Park Forest to Oakdale (California) | 1,772.38 mi (2,852.37 km) |
| Park Forest to Oakdale (Minnesota) | 359.37 mi (578.35 km) |
| Park Forest to Oakland (California) | 1,842.54 mi (2,965.28 km) |
| Park Forest to Oakland (New Jersey) | 698.39 mi (1,123.96 km) |
| Park Forest to Oakland Park (Florida) | 1,141.20 mi (1,836.58 km) |
