| Metairie to Orbetello | 5,376.14 mi (8,652.07 km) |
| Metairie to Oria | 5,729.18 mi (9,220.23 km) |
| Metairie to Oristano | 5,342.50 mi (8,597.93 km) |
| Metairie to Orta Nova | 5,613.79 mi (9,034.52 km) |
| Metairie to Orte | 5,427.21 mi (8,734.25 km) |
| Metairie to Ortona | 5,519.18 mi (8,882.27 km) |
| Metairie to Orvieto | 5,406.10 mi (8,700.28 km) |
| Metairie to Orzinuovi | 5,221.24 mi (8,402.78 km) |
| Metairie to Osimo | 5,438.90 mi (8,753.06 km) |
| Metairie to Ospitaletto | 5,222.12 mi (8,404.19 km) |
| Metairie to Ostuni | 5,718.04 mi (9,202.30 km) |
| Metairie to Ottaviano | 5,577.15 mi (8,975.56 km) |
| Metairie to Ovada | 5,190.43 mi (8,353.19 km) |
| Metairie to Ozieri | 5,338.99 mi (8,592.27 km) |
| Metairie to Paceco | 5,593.09 mi (9,001.20 km) |
