| Atascadero to Orangevale (California) | 223.43 mi (359.57 km) |
| Atascadero to Orchards (Washington) | 711.74 mi (1,145.44 km) |
| Atascadero to Orcutt (California) | 44.93 mi (72.31 km) |
| Atascadero to Oregon (Ohio) | 2,040.58 mi (3,284.00 km) |
| Atascadero to Oregon (Wisconsin) | 1,741.28 mi (2,802.32 km) |
| Atascadero to Oregon City (Oregon) | 688.48 mi (1,108.01 km) |
| Atascadero to Orem (Utah) | 591.79 mi (952.40 km) |
| Atascadero to Orinda (California) | 185.19 mi (298.04 km) |
| Atascadero to Orland Park (Illinois) | 1,811.82 mi (2,915.84 km) |
| Atascadero to Orlando (Florida) | 2,340.43 mi (3,766.56 km) |
| Atascadero to Ormond Beach (Florida) | 2,332.83 mi (3,754.33 km) |
| Atascadero to Oro Valley (Arizona) | 594.98 mi (957.53 km) |
| Atascadero to Oroville (California) | 281.70 mi (453.35 km) |
| Atascadero to Oshkosh (Wisconsin) | 1,792.14 mi (2,884.17 km) |
| Atascadero to Oskaloosa (Iowa) | 1,563.46 mi (2,516.14 km) |
