| Santa Margarita to Oswego (Illinois) | 4,544.39 mi (7,313.49 km) |
| Santa Margarita to Oswego (New York) | 3,959.60 mi (6,372.36 km) |
| Santa Margarita to Otsego (Minnesota) | 4,630.67 mi (7,452.34 km) |
| Santa Margarita to Ottawa (Illinois) | 4,577.91 mi (7,367.44 km) |
| Santa Margarita to Ottawa (Kansas) | 4,966.28 mi (7,992.46 km) |
| Santa Margarita to Ottumwa (Iowa) | 4,746.07 mi (7,638.06 km) |
| Santa Margarita to Overland (Missouri) | 4,747.72 mi (7,640.72 km) |
| Santa Margarita to Overland Park (Kansas) | 4,929.50 mi (7,933.26 km) |
| Santa Margarita to Overlea (Maryland) | 4,089.02 mi (6,580.64 km) |
| Santa Margarita to Oviedo (Florida) | 4,702.98 mi (7,568.71 km) |
| Santa Margarita to Owasso (Oklahoma) | 5,087.66 mi (8,187.80 km) |
| Santa Margarita to Owatonna (Minnesota) | 4,660.23 mi (7,499.91 km) |
| Santa Margarita to Owensboro (Kentucky) | 4,637.49 mi (7,463.32 km) |
| Santa Margarita to Owings Mills (Maryland) | 4,100.35 mi (6,598.88 km) |
| Santa Margarita to Owosso (Michigan) | 4,315.69 mi (6,945.44 km) |
