| Encinitas to Oakley (California) | 422.78 mi (680.40 km) |
| Encinitas to Oakton (Virginia) | 2,252.32 mi (3,624.77 km) |
| Encinitas to Oakville (Missouri) | 1,550.03 mi (2,494.53 km) |
| Encinitas to Oatfield (Oregon) | 900.10 mi (1,448.58 km) |
| Encinitas to Ocala (Florida) | 2,084.37 mi (3,354.47 km) |
| Encinitas to Ocean Acres (New Jersey) | 2,411.11 mi (3,880.31 km) |
| Encinitas to Ocean City (New Jersey) | 2,395.70 mi (3,855.51 km) |
| Encinitas to Ocean Pines (Maryland) | 2,370.29 mi (3,814.62 km) |
| Encinitas to Ocean Pointe (Hawaii) | 2,615.11 mi (4,208.62 km) |
| Encinitas to Ocean Springs (Mississippi) | 1,678.17 mi (2,700.76 km) |
| Encinitas to Oceanside (California) | 12.43 mi (20.01 km) |
| Encinitas to Oceanside (New York) | 2,442.62 mi (3,931.02 km) |
| Encinitas to Ocoee (Florida) | 2,132.16 mi (3,431.38 km) |
| Encinitas to Oconomowoc (Wisconsin) | 1,700.75 mi (2,737.10 km) |
| Encinitas to Odenton (Maryland) | 2,284.46 mi (3,676.48 km) |
