| Carol Stream to Oak Harbor (Washington) | 1,723.34 mi (2,773.44 km) |
| Carol Stream to Oak Hills (Oregon) | 1,737.18 mi (2,795.72 km) |
| Carol Stream to Oak Lawn (Illinois) | 24.04 mi (38.68 km) |
| Carol Stream to Oak Park (California) | 1,739.65 mi (2,799.69 km) |
| Carol Stream to Oak Park (Illinois) | 17.66 mi (28.41 km) |
| Carol Stream to Oak Park (Michigan) | 256.07 mi (412.11 km) |
| Carol Stream to Oak Ridge (Florida) | 1,002.50 mi (1,613.37 km) |
| Carol Stream to Oak Ridge (New Jersey) | 707.67 mi (1,138.89 km) |
| Carol Stream to Oak Ridge (Tennessee) | 460.05 mi (740.37 km) |
| Carol Stream to Oakdale (California) | 1,748.38 mi (2,813.75 km) |
| Carol Stream to Oakdale (Minnesota) | 322.00 mi (518.21 km) |
| Carol Stream to Oakland (California) | 1,818.09 mi (2,925.94 km) |
| Carol Stream to Oakland (New Jersey) | 720.86 mi (1,160.12 km) |
| Carol Stream to Oakland Park (Florida) | 1,178.18 mi (1,896.09 km) |
| Carol Stream to Oakleaf Plantation (Florida) | 884.08 mi (1,422.79 km) |
