| Tracy to Orangeburg (South Carolina) | 2,280.62 mi (3,670.31 km) |
| Tracy to Orangevale (California) | 67.59 mi (108.78 km) |
| Tracy to Orchards (Washington) | 552.92 mi (889.83 km) |
| Tracy to Orcutt (California) | 205.61 mi (330.90 km) |
| Tracy to Oregon (Ohio) | 2,023.02 mi (3,255.73 km) |
| Tracy to Oregon (Wisconsin) | 1,715.71 mi (2,761.17 km) |
| Tracy to Oregon City (Oregon) | 529.42 mi (852.01 km) |
| Tracy to Orem (Utah) | 552.55 mi (889.25 km) |
| Tracy to Orinda (California) | 41.07 mi (66.10 km) |
| Tracy to Orland Park (Illinois) | 1,794.99 mi (2,888.76 km) |
| Tracy to Orlando (Florida) | 2,388.49 mi (3,843.91 km) |
| Tracy to Ormond Beach (Florida) | 2,376.90 mi (3,825.25 km) |
| Tracy to Oro Valley (Arizona) | 695.96 mi (1,120.03 km) |
| Tracy to Oroville (California) | 122.65 mi (197.38 km) |
| Tracy to Oshkosh (Wisconsin) | 1,759.84 mi (2,832.19 km) |
