| Tuscaloosa to Odenton (Maryland) | 725.54 mi (1,167.64 km) |
| Tuscaloosa to Odessa (Texas) | 867.25 mi (1,395.71 km) |
| Tuscaloosa to Ogden (Utah) | 1,447.31 mi (2,329.22 km) |
| Tuscaloosa to Oildale (California) | 1,796.28 mi (2,890.84 km) |
| Tuscaloosa to Ojus (Florida) | 669.46 mi (1,077.39 km) |
| Tuscaloosa to Okemos (Michigan) | 675.85 mi (1,087.68 km) |
| Tuscaloosa to Oklahoma City (Oklahoma) | 589.89 mi (949.34 km) |
| Tuscaloosa to Okmulgee (Oklahoma) | 510.27 mi (821.20 km) |
| Tuscaloosa to Olathe (Kansas) | 563.77 mi (907.30 km) |
| Tuscaloosa to Old Jamestown (Missouri) | 416.71 mi (670.63 km) |
| Tuscaloosa to Oldsmar (Florida) | 459.93 mi (740.19 km) |
| Tuscaloosa to Olean (New York) | 787.13 mi (1,266.76 km) |
| Tuscaloosa to Olive Branch (Mississippi) | 178.44 mi (287.18 km) |
| Tuscaloosa to Olivehurst (California) | 1,929.04 mi (3,104.50 km) |
| Tuscaloosa to Olney (Maryland) | 711.07 mi (1,144.36 km) |
