| Guayama to Orbetello | 4,750.78 mi (7,645.65 km) |
| Guayama to Oria | 5,098.08 mi (8,204.57 km) |
| Guayama to Oristano | 4,630.32 mi (7,451.78 km) |
| Guayama to Orta Nova | 4,989.76 mi (8,030.25 km) |
| Guayama to Orte | 4,810.17 mi (7,741.22 km) |
| Guayama to Ortona | 4,913.10 mi (7,906.87 km) |
| Guayama to Orvieto | 4,794.37 mi (7,715.79 km) |
| Guayama to Orzinuovi | 4,671.84 mi (7,518.60 km) |
| Guayama to Osimo | 4,857.59 mi (7,817.54 km) |
| Guayama to Ospitaletto | 4,677.99 mi (7,528.50 km) |
| Guayama to Ostuni | 5,092.70 mi (8,195.91 km) |
| Guayama to Ottaviano | 4,930.97 mi (7,935.63 km) |
| Guayama to Ovada | 4,611.84 mi (7,422.05 km) |
| Guayama to Ozieri | 4,648.11 mi (7,480.41 km) |
| Guayama to Paceco | 4,856.27 mi (7,815.42 km) |
