| Normal to Oak Harbor (Washington) | 1,729.34 mi (2,783.10 km) |
| Normal to Oak Hills (Oregon) | 1,731.10 mi (2,785.94 km) |
| Normal to Oak Lawn (Illinois) | 104.50 mi (168.18 km) |
| Normal to Oak Park (California) | 1,684.23 mi (2,710.51 km) |
| Normal to Oak Park (Illinois) | 113.06 mi (181.95 km) |
| Normal to Oak Park (Michigan) | 329.02 mi (529.50 km) |
| Normal to Oak Ridge (Florida) | 936.59 mi (1,507.30 km) |
| Normal to Oak Ridge (New Jersey) | 758.15 mi (1,220.13 km) |
| Normal to Oak Ridge (Tennessee) | 404.92 mi (651.65 km) |
| Normal to Oakdale (California) | 1,708.49 mi (2,749.54 km) |
| Normal to Oakdale (Minnesota) | 368.53 mi (593.09 km) |
| Normal to Oakland (California) | 1,779.66 mi (2,864.08 km) |
| Normal to Oakland (New Jersey) | 771.50 mi (1,241.62 km) |
| Normal to Oakland Park (Florida) | 1,113.08 mi (1,791.33 km) |
| Normal to Oakleaf Plantation (Florida) | 820.41 mi (1,320.32 km) |
