| Grenada to Odessa (Texas) | 738.84 mi (1,189.04 km) |
| Grenada to Ogden (Utah) | 1,314.07 mi (2,114.79 km) |
| Grenada to Oildale (California) | 1,659.46 mi (2,670.64 km) |
| Grenada to Ojus (Florida) | 790.92 mi (1,272.87 km) |
| Grenada to Okemos (Michigan) | 682.29 mi (1,098.04 km) |
| Grenada to Oklahoma City (Oklahoma) | 452.92 mi (728.90 km) |
| Grenada to Okmulgee (Oklahoma) | 373.83 mi (601.62 km) |
| Grenada to Olathe (Kansas) | 449.19 mi (722.90 km) |
| Grenada to Old Jamestown (Missouri) | 350.44 mi (563.98 km) |
| Grenada to Oldsmar (Florida) | 579.41 mi (932.46 km) |
| Grenada to Olean (New York) | 843.32 mi (1,357.20 km) |
| Grenada to Olive Branch (Mississippi) | 81.51 mi (131.18 km) |
| Grenada to Olivehurst (California) | 1,792.65 mi (2,884.99 km) |
| Grenada to Olney (Maryland) | 798.11 mi (1,284.43 km) |
| Grenada to Olympia (Washington) | 1,946.67 mi (3,132.86 km) |
