| Grenada to Opole | 5,138.17 mi (8,269.08 km) |
| Grenada to Orzesze | 5,188.11 mi (8,349.45 km) |
| Grenada to Osowa | 5,009.83 mi (8,062.54 km) |
| Grenada to Ostroda | 5,088.31 mi (8,188.84 km) |
| Grenada to Ostroleka | 5,167.37 mi (8,316.08 km) |
| Grenada to Ostrow Mazowiecka | 5,189.52 mi (8,351.73 km) |
| Grenada to Ostrow Wielkopolski | 5,095.48 mi (8,200.39 km) |
| Grenada to Ostrowiec Swietokrzyski | 5,250.07 mi (8,449.18 km) |
| Grenada to Ostrzeszow | 5,108.72 mi (8,221.70 km) |
| Grenada to Oswiecim | 5,209.61 mi (8,384.05 km) |
| Grenada to Otwock | 5,196.47 mi (8,362.91 km) |
| Grenada to Ozarow Mazowiecki | 5,176.46 mi (8,330.71 km) |
| Grenada to Ozimek | 5,147.98 mi (8,284.87 km) |
| Grenada to Ozorkow | 5,134.37 mi (8,262.96 km) |
| Grenada to Pabianice | 5,150.52 mi (8,288.97 km) |
