| New Orleans to Orbetello | 5,361.81 mi (8,628.99 km) |
| New Orleans to Oria | 5,714.95 mi (9,197.32 km) |
| New Orleans to Oristano | 5,327.83 mi (8,574.31 km) |
| New Orleans to Orta Nova | 5,599.54 mi (9,011.59 km) |
| New Orleans to Orte | 5,412.92 mi (8,711.26 km) |
| New Orleans to Ortona | 5,504.98 mi (8,859.41 km) |
| New Orleans to Orvieto | 5,391.83 mi (8,677.31 km) |
| New Orleans to Orzinuovi | 5,207.16 mi (8,380.12 km) |
| New Orleans to Osimo | 5,424.76 mi (8,730.31 km) |
| New Orleans to Ospitaletto | 5,208.06 mi (8,381.57 km) |
| New Orleans to Ostuni | 5,703.82 mi (9,179.42 km) |
| New Orleans to Ottaviano | 5,562.80 mi (8,952.47 km) |
| New Orleans to Ovada | 5,176.21 mi (8,330.31 km) |
| New Orleans to Ozieri | 5,324.39 mi (8,568.77 km) |
| New Orleans to Paceco | 5,578.40 mi (8,977.56 km) |
