| Aiken to Orangevale (California) | 2,215.83 mi (3,566.04 km) |
| Aiken to Orchards (Washington) | 2,299.12 mi (3,700.08 km) |
| Aiken to Orcutt (California) | 2,199.42 mi (3,539.62 km) |
| Aiken to Oregon (Ohio) | 568.86 mi (915.49 km) |
| Aiken to Oregon (Wisconsin) | 770.14 mi (1,239.42 km) |
| Aiken to Oregon City (Oregon) | 2,299.35 mi (3,700.44 km) |
| Aiken to Orem (Utah) | 1,711.34 mi (2,754.13 km) |
| Aiken to Orinda (California) | 2,271.59 mi (3,655.77 km) |
| Aiken to Orland Park (Illinois) | 650.98 mi (1,047.65 km) |
| Aiken to Orlando (Florida) | 349.89 mi (563.10 km) |
| Aiken to Ormond Beach (Florida) | 294.71 mi (474.28 km) |
| Aiken to Oro Valley (Arizona) | 1,691.51 mi (2,722.22 km) |
| Aiken to Oroville (California) | 2,231.65 mi (3,591.49 km) |
| Aiken to Oshkosh (Wisconsin) | 812.35 mi (1,307.36 km) |
| Aiken to Oskaloosa (Iowa) | 802.75 mi (1,291.91 km) |
