| Comarnic to Olympia Heights (Florida) | 5,687.48 mi (9,153.12 km) |
| Comarnic to Omaha (Nebraska) | 5,460.01 mi (8,787.04 km) |
| Comarnic to On Top of the World Designated Place (Florida) | 5,597.58 mi (9,008.44 km) |
| Comarnic to Onalaska (Wisconsin) | 5,163.83 mi (8,310.38 km) |
| Comarnic to Oneida (New York) | 4,656.82 mi (7,494.42 km) |
| Comarnic to Oneonta (New York) | 4,662.71 mi (7,503.90 km) |
| Comarnic to Ontario (California) | 6,495.09 mi (10,452.84 km) |
| Comarnic to Ontario (Oregon) | 5,856.11 mi (9,424.50 km) |
| Comarnic to Opa-locka (Florida) | 5,675.06 mi (9,133.13 km) |
| Comarnic to Opelika (Alabama) | 5,539.08 mi (8,914.29 km) |
| Comarnic to Opelousas (Louisiana) | 5,906.64 mi (9,505.82 km) |
| Comarnic to Orange (California) | 6,515.05 mi (10,484.96 km) |
| Comarnic to Orange (Texas) | 5,990.54 mi (9,640.84 km) |
| Comarnic to Orange City (Florida) | 5,565.19 mi (8,956.31 km) |
| Comarnic to Orangeburg (South Carolina) | 5,319.42 mi (8,560.77 km) |
