| Cartagena to Olympia Heights (Florida) | 4,603.75 mi (7,409.02 km) |
| Cartagena to Omaha (Nebraska) | 4,803.89 mi (7,731.11 km) |
| Cartagena to On Top of the World Designated Place (Florida) | 4,583.07 mi (7,375.74 km) |
| Cartagena to Onalaska (Wisconsin) | 4,499.27 mi (7,240.88 km) |
| Cartagena to Oneida (New York) | 3,819.24 mi (6,146.47 km) |
| Cartagena to Oneonta (New York) | 3,807.02 mi (6,126.81 km) |
| Cartagena to Ontario (California) | 6,031.02 mi (9,705.98 km) |
| Cartagena to Ontario (Oregon) | 5,524.59 mi (8,890.96 km) |
| Cartagena to Opa-locka (Florida) | 4,592.91 mi (7,391.58 km) |
| Cartagena to Opelika (Alabama) | 4,613.36 mi (7,424.48 km) |
| Cartagena to Opelousas (Louisiana) | 5,025.45 mi (8,087.67 km) |
| Cartagena to Orange (California) | 6,051.25 mi (9,738.54 km) |
| Cartagena to Orange (Texas) | 5,123.85 mi (8,246.03 km) |
| Cartagena to Orange City (Florida) | 4,537.53 mi (7,302.45 km) |
| Cartagena to Orangeburg (South Carolina) | 4,358.45 mi (7,014.24 km) |
