| Drexel Heights to Orbetello | 6,117.38 mi (9,844.97 km) |
| Drexel Heights to Oria | 6,443.53 mi (10,369.86 km) |
| Drexel Heights to Oristano | 6,138.71 mi (9,879.30 km) |
| Drexel Heights to Orta Nova | 6,333.67 mi (10,193.06 km) |
| Drexel Heights to Orte | 6,158.93 mi (9,911.85 km) |
| Drexel Heights to Ortona | 6,236.13 mi (10,036.09 km) |
| Drexel Heights to Orvieto | 6,136.41 mi (9,875.60 km) |
| Drexel Heights to Orzinuovi | 5,929.88 mi (9,543.23 km) |
| Drexel Heights to Osimo | 6,147.56 mi (9,893.54 km) |
| Drexel Heights to Ospitaletto | 5,927.45 mi (9,539.31 km) |
| Drexel Heights to Ostuni | 6,429.72 mi (10,347.63 km) |
| Drexel Heights to Ottaviano | 6,313.96 mi (10,161.33 km) |
| Drexel Heights to Ovada | 5,919.60 mi (9,526.67 km) |
| Drexel Heights to Ozieri | 6,122.82 mi (9,853.73 km) |
| Drexel Heights to Paceco | 6,384.09 mi (10,274.19 km) |
