| Caguas to Orbetello | 4,735.86 mi (7,621.62 km) |
| Caguas to Oria | 5,083.41 mi (8,180.95 km) |
| Caguas to Oristano | 4,615.96 mi (7,428.67 km) |
| Caguas to Orta Nova | 4,974.98 mi (8,006.45 km) |
| Caguas to Orte | 4,795.22 mi (7,717.17 km) |
| Caguas to Ortona | 4,898.14 mi (7,882.79 km) |
| Caguas to Orvieto | 4,779.37 mi (7,691.65 km) |
| Caguas to Orzinuovi | 4,656.35 mi (7,493.67 km) |
| Caguas to Osimo | 4,842.42 mi (7,793.13 km) |
| Caguas to Ospitaletto | 4,662.47 mi (7,503.52 km) |
| Caguas to Ostuni | 5,077.98 mi (8,172.23 km) |
| Caguas to Ottaviano | 4,916.31 mi (7,912.03 km) |
| Caguas to Ovada | 4,596.51 mi (7,397.37 km) |
| Caguas to Ozieri | 4,633.60 mi (7,457.06 km) |
| Caguas to Paceco | 4,842.26 mi (7,792.86 km) |
