| Grain Valley to Orangevale (California) | 1,448.28 mi (2,330.78 km) |
| Grain Valley to Orchards (Washington) | 1,508.67 mi (2,427.96 km) |
| Grain Valley to Orcutt (California) | 1,470.30 mi (2,366.21 km) |
| Grain Valley to Oregon (Ohio) | 595.57 mi (958.48 km) |
| Grain Valley to Oregon (Wisconsin) | 368.82 mi (593.56 km) |
| Grain Valley to Oregon City (Oregon) | 1,508.62 mi (2,427.89 km) |
| Grain Valley to Orem (Utah) | 933.07 mi (1,501.63 km) |
| Grain Valley to Orinda (California) | 1,509.61 mi (2,429.48 km) |
| Grain Valley to Orland Park (Illinois) | 379.12 mi (610.13 km) |
| Grain Valley to Orlando (Florida) | 1,035.77 mi (1,666.90 km) |
| Grain Valley to Ormond Beach (Florida) | 1,004.23 mi (1,616.16 km) |
| Grain Valley to Oro Valley (Arizona) | 1,043.00 mi (1,678.55 km) |
| Grain Valley to Oroville (California) | 1,458.19 mi (2,346.74 km) |
| Grain Valley to Oshkosh (Wisconsin) | 452.47 mi (728.18 km) |
| Grain Valley to Oskaloosa (Iowa) | 177.66 mi (285.92 km) |
