| McKinleyville to Oakley (California) | 240.74 mi (387.43 km) |
| McKinleyville to Oakton (Virginia) | 2,453.47 mi (3,948.48 km) |
| McKinleyville to Oakville (Missouri) | 1,792.15 mi (2,884.19 km) |
| McKinleyville to Oatfield (Oregon) | 317.42 mi (510.84 km) |
| McKinleyville to Ocala (Florida) | 2,480.12 mi (3,991.37 km) |
| McKinleyville to Ocean Acres (New Jersey) | 2,587.87 mi (4,164.78 km) |
| McKinleyville to Ocean City (New Jersey) | 2,582.14 mi (4,155.56 km) |
| McKinleyville to Ocean Pines (Maryland) | 2,574.64 mi (4,143.48 km) |
| McKinleyville to Ocean Pointe (Hawaii) | 2,398.88 mi (3,860.62 km) |
| McKinleyville to Ocean Springs (Mississippi) | 2,093.80 mi (3,369.65 km) |
| McKinleyville to Oceanside (California) | 650.94 mi (1,047.59 km) |
| McKinleyville to Oceanside (New York) | 2,601.22 mi (4,186.26 km) |
| McKinleyville to Ocoee (Florida) | 2,533.43 mi (4,077.16 km) |
| McKinleyville to Oconomowoc (Wisconsin) | 1,819.06 mi (2,927.49 km) |
| McKinleyville to Odenton (Maryland) | 2,480.51 mi (3,991.99 km) |
