| West Sacramento to Oskaloosa (Iowa) | 1,536.31 mi (2,472.46 km) |
| West Sacramento to Oswego (Illinois) | 1,757.12 mi (2,827.80 km) |
| West Sacramento to Oswego (New York) | 2,344.30 mi (3,772.78 km) |
| West Sacramento to Otsego (Minnesota) | 1,500.32 mi (2,414.54 km) |
| West Sacramento to Ottawa (Illinois) | 1,733.58 mi (2,789.93 km) |
| West Sacramento to Ottawa (Kansas) | 1,414.98 mi (2,277.19 km) |
| West Sacramento to Ottumwa (Iowa) | 1,548.79 mi (2,492.54 km) |
| West Sacramento to Overland (Missouri) | 1,674.92 mi (2,695.53 km) |
| West Sacramento to Overland Park (Kansas) | 1,443.04 mi (2,322.34 km) |
| West Sacramento to Overlea (Maryland) | 2,394.55 mi (3,853.65 km) |
| West Sacramento to Oviedo (Florida) | 2,400.16 mi (3,862.68 km) |
| West Sacramento to Owasso (Oklahoma) | 1,415.31 mi (2,277.73 km) |
| West Sacramento to Owatonna (Minnesota) | 1,510.17 mi (2,430.39 km) |
| West Sacramento to Owensboro (Kentucky) | 1,860.56 mi (2,994.28 km) |
| West Sacramento to Owings Mills (Maryland) | 2,379.57 mi (3,829.54 km) |
