| West Carson to Orangeburg (South Carolina) | 2,140.42 mi (3,444.67 km) |
| West Carson to Orangevale (California) | 373.58 mi (601.22 km) |
| West Carson to Orchards (Washington) | 849.87 mi (1,367.73 km) |
| West Carson to Orcutt (California) | 141.34 mi (227.46 km) |
| West Carson to Oregon (Ohio) | 1,965.31 mi (3,162.86 km) |
| West Carson to Oregon (Wisconsin) | 1,676.79 mi (2,698.53 km) |
| West Carson to Oregon City (Oregon) | 827.82 mi (1,332.25 km) |
| West Carson to Orem (Utah) | 576.10 mi (927.15 km) |
| West Carson to Orinda (California) | 354.84 mi (571.06 km) |
| West Carson to Orland Park (Illinois) | 1,737.58 mi (2,796.37 km) |
| West Carson to Orlando (Florida) | 2,204.30 mi (3,547.48 km) |
| West Carson to Ormond Beach (Florida) | 2,199.86 mi (3,540.32 km) |
| West Carson to Oro Valley (Arizona) | 434.21 mi (698.79 km) |
| West Carson to Oroville (California) | 432.01 mi (695.25 km) |
| West Carson to Oshkosh (Wisconsin) | 1,734.33 mi (2,791.14 km) |
