| Lanciano to Olympia Heights (Florida) | 5,271.87 mi (8,484.25 km) |
| Lanciano to Omaha (Nebraska) | 5,222.35 mi (8,404.56 km) |
| Lanciano to On Top of the World Designated Place (Florida) | 5,210.69 mi (8,385.79 km) |
| Lanciano to Onalaska (Wisconsin) | 4,918.23 mi (7,915.13 km) |
| Lanciano to Oneida (New York) | 4,332.21 mi (6,972.02 km) |
| Lanciano to Oneonta (New York) | 4,330.79 mi (6,969.73 km) |
| Lanciano to Ontario (California) | 6,353.88 mi (10,225.58 km) |
| Lanciano to Ontario (Oregon) | 5,760.73 mi (9,271.01 km) |
| Lanciano to Opa-locka (Florida) | 5,260.02 mi (8,465.19 km) |
| Lanciano to Opelika (Alabama) | 5,189.17 mi (8,351.16 km) |
| Lanciano to Opelousas (Louisiana) | 5,579.75 mi (8,979.73 km) |
| Lanciano to Orange (California) | 6,374.26 mi (10,258.38 km) |
| Lanciano to Orange (Texas) | 5,670.79 mi (9,126.25 km) |
| Lanciano to Orange City (Florida) | 5,172.40 mi (8,324.17 km) |
| Lanciano to Orangeburg (South Carolina) | 4,952.25 mi (7,969.87 km) |
