| Hemiksem to Olympia Heights (Florida) | 4,630.96 mi (7,452.81 km) |
| Hemiksem to Omaha (Nebraska) | 4,465.42 mi (7,186.41 km) |
| Hemiksem to On Top of the World Designated Place (Florida) | 4,541.76 mi (7,309.26 km) |
| Hemiksem to Onalaska (Wisconsin) | 4,163.32 mi (6,700.21 km) |
| Hemiksem to Oneida (New York) | 3,614.38 mi (5,816.79 km) |
| Hemiksem to Oneonta (New York) | 3,617.73 mi (5,822.18 km) |
| Hemiksem to Ontario (California) | 5,578.97 mi (8,978.49 km) |
| Hemiksem to Ontario (Oregon) | 4,984.14 mi (8,021.20 km) |
| Hemiksem to Opa-locka (Florida) | 4,618.51 mi (7,432.78 km) |
| Hemiksem to Opelika (Alabama) | 4,490.24 mi (7,226.34 km) |
| Hemiksem to Opelousas (Louisiana) | 4,865.93 mi (7,830.95 km) |
| Hemiksem to Orange (California) | 5,599.33 mi (9,011.26 km) |
| Hemiksem to Orange (Texas) | 4,952.76 mi (7,970.69 km) |
| Hemiksem to Orange City (Florida) | 4,508.85 mi (7,256.29 km) |
| Hemiksem to Orangeburg (South Carolina) | 4,266.24 mi (6,865.85 km) |
