| Costa Mesa to Oak Harbor (Washington) | 1,039.84 mi (1,673.45 km) |
| Costa Mesa to Oak Hills (Oregon) | 860.87 mi (1,385.44 km) |
| Costa Mesa to Oak Lawn (Illinois) | 1,729.80 mi (2,783.84 km) |
| Costa Mesa to Oak Park (California) | 60.63 mi (97.58 km) |
| Costa Mesa to Oak Park (Illinois) | 1,729.79 mi (2,783.83 km) |
| Costa Mesa to Oak Park (Michigan) | 1,968.92 mi (3,168.66 km) |
| Costa Mesa to Oak Ridge (Florida) | 2,178.11 mi (3,505.33 km) |
| Costa Mesa to Oak Ridge (New Jersey) | 2,412.66 mi (3,882.80 km) |
| Costa Mesa to Oak Ridge (Tennessee) | 1,904.28 mi (3,064.65 km) |
| Costa Mesa to Oakdale (California) | 327.27 mi (526.69 km) |
| Costa Mesa to Oakdale (Minnesota) | 1,536.58 mi (2,472.88 km) |
| Costa Mesa to Oakland (California) | 373.31 mi (600.78 km) |
| Costa Mesa to Oakland (New Jersey) | 2,426.01 mi (3,904.29 km) |
| Costa Mesa to Oakland Park (Florida) | 2,306.27 mi (3,711.58 km) |
| Costa Mesa to Oakleaf Plantation (Florida) | 2,119.03 mi (3,410.25 km) |
