| Grain Valley to Oakley (California) | 1,482.23 mi (2,385.41 km) |
| Grain Valley to Oakton (Virginia) | 907.16 mi (1,459.93 km) |
| Grain Valley to Oakville (Missouri) | 213.22 mi (343.15 km) |
| Grain Valley to Oatfield (Oregon) | 1,509.28 mi (2,428.95 km) |
| Grain Valley to Ocala (Florida) | 966.81 mi (1,555.93 km) |
| Grain Valley to Ocean Acres (New Jersey) | 1,063.26 mi (1,711.15 km) |
| Grain Valley to Ocean City (New Jersey) | 1,048.74 mi (1,687.78 km) |
| Grain Valley to Ocean Pines (Maryland) | 1,026.78 mi (1,652.44 km) |
| Grain Valley to Ocean Pointe (Hawaii) | 3,921.63 mi (6,311.25 km) |
| Grain Valley to Ocean Springs (Mississippi) | 669.47 mi (1,077.41 km) |
| Grain Valley to Oceanside (California) | 1,345.64 mi (2,165.60 km) |
| Grain Valley to Oceanside (New York) | 1,094.80 mi (1,761.92 km) |
| Grain Valley to Ocoee (Florida) | 1,022.55 mi (1,645.63 km) |
| Grain Valley to Oconomowoc (Wisconsin) | 409.90 mi (659.68 km) |
| Grain Valley to Odenton (Maryland) | 938.45 mi (1,510.29 km) |
