| Depew to Orbetello | 4,325.04 mi (6,960.49 km) |
| Depew to Oria | 4,672.23 mi (7,519.23 km) |
| Depew to Oristano | 4,311.39 mi (6,938.51 km) |
| Depew to Orta Nova | 4,557.68 mi (7,334.88 km) |
| Depew to Orte | 4,373.42 mi (7,038.35 km) |
| Depew to Ortona | 4,461.56 mi (7,180.18 km) |
| Depew to Orvieto | 4,351.73 mi (7,003.43 km) |
| Depew to Orzinuovi | 4,159.18 mi (6,693.56 km) |
| Depew to Osimo | 4,378.33 mi (7,046.24 km) |
| Depew to Ospitaletto | 4,159.15 mi (6,693.50 km) |
| Depew to Ostuni | 4,660.24 mi (7,499.93 km) |
| Depew to Ottaviano | 4,526.04 mi (7,283.95 km) |
| Depew to Ovada | 4,134.18 mi (6,653.32 km) |
| Depew to Ozieri | 4,302.89 mi (6,924.83 km) |
| Depew to Paceco | 4,561.64 mi (7,341.26 km) |
