| Tracy to Oskaloosa (Iowa) | 1,548.19 mi (2,491.58 km) |
| Tracy to Oswego (Illinois) | 1,770.25 mi (2,848.94 km) |
| Tracy to Oswego (New York) | 2,362.30 mi (3,801.75 km) |
| Tracy to Otsego (Minnesota) | 1,522.43 mi (2,450.11 km) |
| Tracy to Ottawa (Illinois) | 1,745.92 mi (2,809.79 km) |
| Tracy to Ottawa (Kansas) | 1,419.15 mi (2,283.91 km) |
| Tracy to Ottumwa (Iowa) | 1,559.98 mi (2,510.55 km) |
| Tracy to Overland (Missouri) | 1,680.70 mi (2,704.83 km) |
| Tracy to Overland Park (Kansas) | 1,448.17 mi (2,330.60 km) |
| Tracy to Overlea (Maryland) | 2,405.62 mi (3,871.47 km) |
| Tracy to Oviedo (Florida) | 2,391.20 mi (3,848.27 km) |
| Tracy to Owasso (Oklahoma) | 1,412.73 mi (2,273.58 km) |
| Tracy to Owatonna (Minnesota) | 1,529.27 mi (2,461.12 km) |
| Tracy to Owensboro (Kentucky) | 1,865.23 mi (3,001.80 km) |
| Tracy to Owings Mills (Maryland) | 2,390.64 mi (3,847.36 km) |
