| Dana Point to Olympia Heights (Florida) | 2,294.29 mi (3,692.30 km) |
| Dana Point to Omaha (Nebraska) | 1,299.99 mi (2,092.13 km) |
| Dana Point to On Top of the World Designated Place (Florida) | 2,102.22 mi (3,383.20 km) |
| Dana Point to Onalaska (Wisconsin) | 1,590.07 mi (2,558.97 km) |
| Dana Point to Oneida (New York) | 2,347.73 mi (3,778.31 km) |
| Dana Point to Oneonta (New York) | 2,376.88 mi (3,825.22 km) |
| Dana Point to Ontario (California) | 39.45 mi (63.49 km) |
| Dana Point to Ontario (Oregon) | 730.14 mi (1,175.05 km) |
| Dana Point to Opa-locka (Florida) | 2,294.49 mi (3,692.63 km) |
| Dana Point to Opelika (Alabama) | 1,864.65 mi (3,000.87 km) |
| Dana Point to Opelousas (Louisiana) | 1,510.79 mi (2,431.38 km) |
| Dana Point to Orange (California) | 23.94 mi (38.53 km) |
| Dana Point to Orange (Texas) | 1,421.27 mi (2,287.32 km) |
| Dana Point to Orange City (Florida) | 2,163.31 mi (3,481.51 km) |
| Dana Point to Orangeburg (South Carolina) | 2,110.96 mi (3,397.26 km) |
