| University to Olympia (Washington) | 2,534.80 mi (4,079.36 km) |
| University to Olympia Heights (Florida) | 207.58 mi (334.06 km) |
| University to Omaha (Nebraska) | 1,192.30 mi (1,918.82 km) |
| University to On Top of the World Designated Place (Florida) | 71.63 mi (115.28 km) |
| University to Onalaska (Wisconsin) | 1,195.81 mi (1,924.47 km) |
| University to Oneida (New York) | 1,103.05 mi (1,775.19 km) |
| University to Oneonta (New York) | 1,075.76 mi (1,731.26 km) |
| University to Ontario (California) | 2,111.48 mi (3,398.10 km) |
| University to Ontario (Oregon) | 2,198.87 mi (3,538.75 km) |
| University to Opa-locka (Florida) | 201.54 mi (324.34 km) |
| University to Opelika (Alabama) | 362.04 mi (582.64 km) |
| University to Opelousas (Louisiana) | 605.20 mi (973.97 km) |
| University to Orange (California) | 2,123.46 mi (3,417.39 km) |
| University to Orange (Texas) | 697.97 mi (1,123.27 km) |
| University to Orange City (Florida) | 91.37 mi (147.04 km) |
