| Oerlinghausen to Olympia Heights (Florida) | 4,796.50 mi (7,719.23 km) |
| Oerlinghausen to Omaha (Nebraska) | 4,581.57 mi (7,373.32 km) |
| Oerlinghausen to On Top of the World Designated Place (Florida) | 4,700.18 mi (7,564.21 km) |
| Oerlinghausen to Onalaska (Wisconsin) | 4,281.87 mi (6,891.00 km) |
| Oerlinghausen to Oneida (New York) | 3,757.22 mi (6,046.66 km) |
| Oerlinghausen to Oneonta (New York) | 3,762.70 mi (6,055.49 km) |
| Oerlinghausen to Ontario (California) | 5,666.99 mi (9,120.14 km) |
| Oerlinghausen to Ontario (Oregon) | 5,056.71 mi (8,137.99 km) |
| Oerlinghausen to Opa-locka (Florida) | 4,783.94 mi (7,699.01 km) |
| Oerlinghausen to Opelika (Alabama) | 4,638.86 mi (7,465.52 km) |
| Oerlinghausen to Opelousas (Louisiana) | 5,007.69 mi (8,059.10 km) |
| Oerlinghausen to Orange (California) | 5,687.26 mi (9,152.75 km) |
| Oerlinghausen to Orange (Texas) | 5,092.45 mi (8,195.50 km) |
| Oerlinghausen to Orange City (Florida) | 4,668.86 mi (7,513.80 km) |
| Oerlinghausen to Orangeburg (South Carolina) | 4,419.94 mi (7,113.20 km) |
