| Clacton-on-Sea to Oakley (California) | 5,342.95 mi (8,598.65 km) |
| Clacton-on-Sea to Oakton (Virginia) | 3,721.52 mi (5,989.20 km) |
| Clacton-on-Sea to Oakville (Missouri) | 4,253.54 mi (6,845.41 km) |
| Clacton-on-Sea to Oatfield (Oregon) | 4,935.41 mi (7,942.78 km) |
| Clacton-on-Sea to Ocala (Florida) | 4,387.78 mi (7,061.45 km) |
| Clacton-on-Sea to Ocean Acres (New Jersey) | 3,560.66 mi (5,730.33 km) |
| Clacton-on-Sea to Ocean City (New Jersey) | 3,594.96 mi (5,785.52 km) |
| Clacton-on-Sea to Ocean Pines (Maryland) | 3,657.11 mi (5,885.55 km) |
| Clacton-on-Sea to Ocean Pointe (Hawaii) | 7,230.77 mi (11,636.80 km) |
| Clacton-on-Sea to Ocean Springs (Mississippi) | 4,596.40 mi (7,397.18 km) |
| Clacton-on-Sea to Oceanside (California) | 5,485.73 mi (8,828.43 km) |
| Clacton-on-Sea to Oceanside (New York) | 3,495.20 mi (5,624.98 km) |
| Clacton-on-Sea to Ocoee (Florida) | 4,392.24 mi (7,068.62 km) |
| Clacton-on-Sea to Oconomowoc (Wisconsin) | 3,961.47 mi (6,375.37 km) |
| Clacton-on-Sea to Odenton (Maryland) | 3,688.89 mi (5,936.69 km) |
