| Morro Bay to Oswego (Illinois) | 1,799.13 mi (2,895.43 km) |
| Morro Bay to Oswego (New York) | 2,402.60 mi (3,866.61 km) |
| Morro Bay to Otsego (Minnesota) | 1,578.83 mi (2,540.87 km) |
| Morro Bay to Ottawa (Illinois) | 1,772.65 mi (2,852.80 km) |
| Morro Bay to Ottawa (Kansas) | 1,424.86 mi (2,293.10 km) |
| Morro Bay to Ottumwa (Iowa) | 1,584.70 mi (2,550.33 km) |
| Morro Bay to Overland (Missouri) | 1,688.92 mi (2,718.05 km) |
| Morro Bay to Overland Park (Kansas) | 1,456.36 mi (2,343.78 km) |
| Morro Bay to Overlea (Maryland) | 2,425.57 mi (3,903.58 km) |
| Morro Bay to Oviedo (Florida) | 2,353.30 mi (3,787.28 km) |
| Morro Bay to Owasso (Oklahoma) | 1,398.99 mi (2,251.45 km) |
| Morro Bay to Owatonna (Minnesota) | 1,576.95 mi (2,537.86 km) |
| Morro Bay to Owensboro (Kentucky) | 1,869.08 mi (3,008.00 km) |
| Morro Bay to Owings Mills (Maryland) | 2,410.65 mi (3,879.56 km) |
| Morro Bay to Owosso (Michigan) | 2,016.09 mi (3,244.58 km) |
