| Encinitas to Odessa (Texas) | 872.55 mi (1,404.24 km) |
| Encinitas to Ogden (Utah) | 635.53 mi (1,022.79 km) |
| Encinitas to Oildale (California) | 193.02 mi (310.63 km) |
| Encinitas to Ojus (Florida) | 2,271.91 mi (3,656.28 km) |
| Encinitas to Okemos (Michigan) | 1,897.15 mi (3,053.16 km) |
| Encinitas to Oklahoma City (Oklahoma) | 1,138.05 mi (1,831.51 km) |
| Encinitas to Okmulgee (Oklahoma) | 1,223.12 mi (1,968.42 km) |
| Encinitas to Olathe (Kansas) | 1,314.09 mi (2,114.82 km) |
| Encinitas to Old Jamestown (Missouri) | 1,554.79 mi (2,502.20 km) |
| Encinitas to Oldsmar (Florida) | 2,077.52 mi (3,343.45 km) |
| Encinitas to Olean (New York) | 2,195.40 mi (3,533.16 km) |
| Encinitas to Olive Branch (Mississippi) | 1,570.85 mi (2,528.03 km) |
| Encinitas to Olivehurst (California) | 480.64 mi (773.51 km) |
| Encinitas to Olney (Maryland) | 2,264.01 mi (3,643.57 km) |
| Encinitas to Olympia (Washington) | 1,010.99 mi (1,627.03 km) |
