| Grain Valley to Odessa (Texas) | 672.38 mi (1,082.09 km) |
| Grain Valley to Ogden (Utah) | 948.94 mi (1,527.17 km) |
| Grain Valley to Oildale (California) | 1,383.49 mi (2,226.52 km) |
| Grain Valley to Ojus (Florida) | 1,215.41 mi (1,956.02 km) |
| Grain Valley to Okemos (Michigan) | 571.28 mi (919.38 km) |
| Grain Valley to Oklahoma City (Oklahoma) | 305.23 mi (491.22 km) |
| Grain Valley to Okmulgee (Oklahoma) | 255.08 mi (410.51 km) |
| Grain Valley to Olathe (Kansas) | 34.14 mi (54.94 km) |
| Grain Valley to Old Jamestown (Missouri) | 211.24 mi (339.96 km) |
| Grain Valley to Oldsmar (Florida) | 1,006.06 mi (1,619.10 km) |
| Grain Valley to Olean (New York) | 853.52 mi (1,373.60 km) |
| Grain Valley to Olive Branch (Mississippi) | 369.33 mi (594.37 km) |
| Grain Valley to Olivehurst (California) | 1,461.88 mi (2,352.67 km) |
| Grain Valley to Olney (Maryland) | 917.79 mi (1,477.03 km) |
| Grain Valley to Olympia (Washington) | 1,540.71 mi (2,479.54 km) |
