| Aldenhoven to Olympia Heights (Florida) | 4,716.74 mi (7,590.85 km) |
| Aldenhoven to Omaha (Nebraska) | 4,543.88 mi (7,312.67 km) |
| Aldenhoven to On Top of the World Designated Place (Florida) | 4,627.15 mi (7,446.67 km) |
| Aldenhoven to Onalaska (Wisconsin) | 4,242.26 mi (6,827.26 km) |
| Aldenhoven to Oneida (New York) | 3,697.85 mi (5,951.12 km) |
| Aldenhoven to Oneonta (New York) | 3,701.52 mi (5,957.02 km) |
| Aldenhoven to Ontario (California) | 5,650.57 mi (9,093.72 km) |
| Aldenhoven to Ontario (Oregon) | 5,051.19 mi (8,129.10 km) |
| Aldenhoven to Opa-locka (Florida) | 4,704.28 mi (7,570.82 km) |
| Aldenhoven to Opelika (Alabama) | 4,574.60 mi (7,362.10 km) |
| Aldenhoven to Opelousas (Louisiana) | 4,949.35 mi (7,965.20 km) |
| Aldenhoven to Orange (California) | 5,670.91 mi (9,126.45 km) |
| Aldenhoven to Orange (Texas) | 5,035.86 mi (8,104.43 km) |
| Aldenhoven to Orange City (Florida) | 4,594.35 mi (7,393.88 km) |
| Aldenhoven to Orangeburg (South Carolina) | 4,351.18 mi (7,002.54 km) |
