| Atascadero to Oswego (Illinois) | 1,787.58 mi (2,876.83 km) |
| Atascadero to Oswego (New York) | 2,390.85 mi (3,847.71 km) |
| Atascadero to Otsego (Minnesota) | 1,566.82 mi (2,521.56 km) |
| Atascadero to Ottawa (Illinois) | 1,761.14 mi (2,834.28 km) |
| Atascadero to Ottawa (Kansas) | 1,413.85 mi (2,275.37 km) |
| Atascadero to Ottumwa (Iowa) | 1,573.21 mi (2,531.84 km) |
| Atascadero to Overland (Missouri) | 1,677.88 mi (2,700.28 km) |
| Atascadero to Overland Park (Kansas) | 1,445.28 mi (2,325.95 km) |
| Atascadero to Overlea (Maryland) | 2,414.28 mi (3,885.41 km) |
| Atascadero to Oviedo (Florida) | 2,344.18 mi (3,772.59 km) |
| Atascadero to Owasso (Oklahoma) | 1,388.63 mi (2,234.79 km) |
| Atascadero to Owatonna (Minnesota) | 1,565.05 mi (2,518.70 km) |
| Atascadero to Owensboro (Kentucky) | 1,858.20 mi (2,990.49 km) |
| Atascadero to Owings Mills (Maryland) | 2,399.35 mi (3,861.38 km) |
| Atascadero to Owosso (Michigan) | 2,004.39 mi (3,225.75 km) |
