| Cedar Hill to Olympia Heights (Florida) | 1,107.35 mi (1,782.11 km) |
| Cedar Hill to Omaha (Nebraska) | 601.92 mi (968.70 km) |
| Cedar Hill to On Top of the World Designated Place (Florida) | 902.04 mi (1,451.69 km) |
| Cedar Hill to Onalaska (Wisconsin) | 840.75 mi (1,353.06 km) |
| Cedar Hill to Oneida (New York) | 1,363.88 mi (2,194.96 km) |
| Cedar Hill to Oneonta (New York) | 1,374.20 mi (2,211.56 km) |
| Cedar Hill to Ontario (California) | 1,194.44 mi (1,922.26 km) |
| Cedar Hill to Ontario (Oregon) | 1,336.91 mi (2,151.54 km) |
| Cedar Hill to Opa-locka (Florida) | 1,106.05 mi (1,780.01 km) |
| Cedar Hill to Opelika (Alabama) | 673.70 mi (1,084.22 km) |
| Cedar Hill to Opelousas (Louisiana) | 320.34 mi (515.53 km) |
| Cedar Hill to Orange (California) | 1,207.17 mi (1,942.75 km) |
| Cedar Hill to Orange (Texas) | 253.88 mi (408.58 km) |
| Cedar Hill to Orange City (Florida) | 962.91 mi (1,549.65 km) |
| Cedar Hill to Orangeburg (South Carolina) | 933.28 mi (1,501.96 km) |
