| Valley to Orangeburg (South Carolina) | 253.96 mi (408.71 km) |
| Valley to Orangevale (California) | 2,047.71 mi (3,295.47 km) |
| Valley to Orchards (Washington) | 2,162.70 mi (3,480.53 km) |
| Valley to Orcutt (California) | 2,017.11 mi (3,246.22 km) |
| Valley to Oregon (Ohio) | 618.52 mi (995.41 km) |
| Valley to Oregon (Wisconsin) | 735.44 mi (1,183.57 km) |
| Valley to Oregon City (Oregon) | 2,161.17 mi (3,478.07 km) |
| Valley to Orem (Utah) | 1,553.07 mi (2,499.42 km) |
| Valley to Orinda (California) | 2,100.42 mi (3,380.29 km) |
| Valley to Orland Park (Illinois) | 625.48 mi (1,006.61 km) |
| Valley to Orlando (Florida) | 376.47 mi (605.86 km) |
| Valley to Ormond Beach (Florida) | 342.19 mi (550.69 km) |
| Valley to Oro Valley (Arizona) | 1,497.76 mi (2,410.42 km) |
| Valley to Oroville (California) | 2,066.87 mi (3,326.31 km) |
| Valley to Oshkosh (Wisconsin) | 795.93 mi (1,280.93 km) |
