| Pontecorvo to Olympia Heights (Florida) | 5,258.03 mi (8,461.99 km) |
| Pontecorvo to Omaha (Nebraska) | 5,231.97 mi (8,420.05 km) |
| Pontecorvo to On Top of the World Designated Place (Florida) | 5,201.10 mi (8,370.36 km) |
| Pontecorvo to Onalaska (Wisconsin) | 4,927.32 mi (7,929.76 km) |
| Pontecorvo to Oneida (New York) | 4,332.26 mi (6,972.10 km) |
| Pontecorvo to Oneonta (New York) | 4,329.87 mi (6,968.26 km) |
| Pontecorvo to Ontario (California) | 6,372.84 mi (10,256.09 km) |
| Pontecorvo to Ontario (Oregon) | 5,785.23 mi (9,310.42 km) |
| Pontecorvo to Opa-locka (Florida) | 5,246.28 mi (8,443.08 km) |
| Pontecorvo to Opelika (Alabama) | 5,184.72 mi (8,344.00 km) |
| Pontecorvo to Opelousas (Louisiana) | 5,577.87 mi (8,976.72 km) |
| Pontecorvo to Orange (California) | 6,393.24 mi (10,288.92 km) |
| Pontecorvo to Orange (Texas) | 5,669.73 mi (9,124.55 km) |
| Pontecorvo to Orange City (Florida) | 5,162.01 mi (8,307.45 km) |
| Pontecorvo to Orangeburg (South Carolina) | 4,945.72 mi (7,959.37 km) |
