| Montecorvino Rovella to Olympia Heights (Florida) | 5,341.57 mi (8,596.43 km) |
| Montecorvino Rovella to Omaha (Nebraska) | 5,317.94 mi (8,558.40 km) |
| Montecorvino Rovella to On Top of the World Designated Place (Florida) | 5,285.93 mi (8,506.88 km) |
| Montecorvino Rovella to Onalaska (Wisconsin) | 5,013.36 mi (8,068.22 km) |
| Montecorvino Rovella to Oneida (New York) | 4,418.62 mi (7,111.09 km) |
| Montecorvino Rovella to Oneonta (New York) | 4,416.17 mi (7,107.14 km) |
| Montecorvino Rovella to Ontario (California) | 6,456.59 mi (10,390.87 km) |
| Montecorvino Rovella to Ontario (Oregon) | 5,866.67 mi (9,441.50 km) |
| Montecorvino Rovella to Opa-locka (Florida) | 5,329.86 mi (8,577.58 km) |
| Montecorvino Rovella to Opelika (Alabama) | 5,270.60 mi (8,482.21 km) |
| Montecorvino Rovella to Opelousas (Louisiana) | 5,664.07 mi (9,115.44 km) |
| Montecorvino Rovella to Orange (California) | 6,476.98 mi (10,423.70 km) |
| Montecorvino Rovella to Orange (Texas) | 5,756.00 mi (9,263.39 km) |
| Montecorvino Rovella to Orange City (Florida) | 5,246.63 mi (8,443.63 km) |
| Montecorvino Rovella to Orangeburg (South Carolina) | 5,031.26 mi (8,097.03 km) |
