| Morro Bay to Odessa (Texas) | 1,089.73 mi (1,753.75 km) |
| Morro Bay to Ogden (Utah) | 628.50 mi (1,011.47 km) |
| Morro Bay to Oildale (California) | 102.45 mi (164.88 km) |
| Morro Bay to Ojus (Florida) | 2,485.40 mi (3,999.87 km) |
| Morro Bay to Okemos (Michigan) | 2,003.20 mi (3,223.83 km) |
| Morro Bay to Oklahoma City (Oklahoma) | 1,310.85 mi (2,109.60 km) |
| Morro Bay to Okmulgee (Oklahoma) | 1,393.85 mi (2,243.19 km) |
| Morro Bay to Olathe (Kansas) | 1,449.20 mi (2,332.26 km) |
| Morro Bay to Old Jamestown (Missouri) | 1,693.18 mi (2,724.91 km) |
| Morro Bay to Oldsmar (Florida) | 2,285.58 mi (3,678.29 km) |
| Morro Bay to Olean (New York) | 2,308.51 mi (3,715.19 km) |
| Morro Bay to Olive Branch (Mississippi) | 1,744.07 mi (2,806.81 km) |
| Morro Bay to Olivehurst (California) | 259.37 mi (417.41 km) |
| Morro Bay to Olney (Maryland) | 2,398.24 mi (3,859.59 km) |
| Morro Bay to Olympia (Washington) | 813.47 mi (1,309.16 km) |
