| Cartaxo to Olympia Heights (Florida) | 4,168.10 mi (6,707.90 km) |
| Cartaxo to Omaha (Nebraska) | 4,396.46 mi (7,075.42 km) |
| Cartaxo to On Top of the World Designated Place (Florida) | 4,147.85 mi (6,675.32 km) |
| Cartaxo to Onalaska (Wisconsin) | 4,093.42 mi (6,587.72 km) |
| Cartaxo to Oneida (New York) | 3,398.28 mi (5,469.01 km) |
| Cartaxo to Oneonta (New York) | 3,384.28 mi (5,446.48 km) |
| Cartaxo to Ontario (California) | 5,638.07 mi (9,073.60 km) |
| Cartaxo to Ontario (Oregon) | 5,157.92 mi (8,300.87 km) |
| Cartaxo to Opa-locka (Florida) | 4,157.24 mi (6,690.42 km) |
| Cartaxo to Opelika (Alabama) | 4,181.64 mi (6,729.70 km) |
| Cartaxo to Opelousas (Louisiana) | 4,595.21 mi (7,395.27 km) |
| Cartaxo to Orange (California) | 5,658.15 mi (9,105.91 km) |
| Cartaxo to Orange (Texas) | 4,694.23 mi (7,554.63 km) |
| Cartaxo to Orange City (Florida) | 4,102.08 mi (6,601.66 km) |
| Cartaxo to Orangeburg (South Carolina) | 3,925.50 mi (6,317.49 km) |
