| Tuscaloosa to Orangeburg (South Carolina) | 384.65 mi (619.04 km) |
| Tuscaloosa to Orangevale (California) | 1,910.45 mi (3,074.57 km) |
| Tuscaloosa to Orchards (Washington) | 2,034.85 mi (3,274.78 km) |
| Tuscaloosa to Orcutt (California) | 1,878.09 mi (3,022.49 km) |
| Tuscaloosa to Oregon (Ohio) | 623.26 mi (1,003.04 km) |
| Tuscaloosa to Oregon (Wisconsin) | 677.12 mi (1,089.71 km) |
| Tuscaloosa to Oregon City (Oregon) | 2,032.67 mi (3,271.26 km) |
| Tuscaloosa to Orem (Utah) | 1,418.65 mi (2,283.10 km) |
| Tuscaloosa to Orinda (California) | 1,962.58 mi (3,158.46 km) |
| Tuscaloosa to Orland Park (Illinois) | 578.79 mi (931.47 km) |
| Tuscaloosa to Orlando (Florida) | 492.59 mi (792.75 km) |
| Tuscaloosa to Ormond Beach (Florida) | 466.70 mi (751.08 km) |
| Tuscaloosa to Oro Valley (Arizona) | 1,359.80 mi (2,188.39 km) |
| Tuscaloosa to Oroville (California) | 1,930.32 mi (3,106.56 km) |
| Tuscaloosa to Oshkosh (Wisconsin) | 747.44 mi (1,202.90 km) |
