| Metairie to Olympia Heights (Florida) | 669.27 mi (1,077.08 km) |
| Metairie to Omaha (Nebraska) | 844.83 mi (1,359.62 km) |
| Metairie to On Top of the World Designated Place (Florida) | 478.20 mi (769.59 km) |
| Metairie to Onalaska (Wisconsin) | 961.41 mi (1,547.24 km) |
| Metairie to Oneida (New York) | 1,207.18 mi (1,942.77 km) |
| Metairie to Oneonta (New York) | 1,200.62 mi (1,932.21 km) |
| Metairie to Ontario (California) | 1,625.88 mi (2,616.60 km) |
| Metairie to Ontario (Oregon) | 1,755.31 mi (2,824.90 km) |
| Metairie to Opa-locka (Florida) | 668.19 mi (1,075.35 km) |
| Metairie to Opelika (Alabama) | 337.81 mi (543.65 km) |
| Metairie to Opelousas (Louisiana) | 119.30 mi (192.00 km) |
| Metairie to Orange (California) | 1,637.66 mi (2,635.57 km) |
| Metairie to Orange (Texas) | 214.41 mi (345.06 km) |
| Metairie to Orange City (Florida) | 539.65 mi (868.49 km) |
| Metairie to Orangeburg (South Carolina) | 597.69 mi (961.88 km) |
