| Quedlinburg to Olympia Heights (Florida) | 4,901.30 mi (7,887.88 km) |
| Quedlinburg to Omaha (Nebraska) | 4,672.14 mi (7,519.08 km) |
| Quedlinburg to On Top of the World Designated Place (Florida) | 4,803.51 mi (7,730.49 km) |
| Quedlinburg to Onalaska (Wisconsin) | 4,373.43 mi (7,038.35 km) |
| Quedlinburg to Oneida (New York) | 3,856.72 mi (6,206.79 km) |
| Quedlinburg to Oneonta (New York) | 3,862.80 mi (6,216.58 km) |
| Quedlinburg to Ontario (California) | 5,746.16 mi (9,247.56 km) |
| Quedlinburg to Ontario (Oregon) | 5,129.78 mi (8,255.58 km) |
| Quedlinburg to Opa-locka (Florida) | 4,888.71 mi (7,867.62 km) |
| Quedlinburg to Opelika (Alabama) | 4,739.74 mi (7,627.88 km) |
| Quedlinburg to Opelousas (Louisiana) | 5,106.55 mi (8,218.20 km) |
| Quedlinburg to Orange (California) | 5,766.38 mi (9,280.10 km) |
| Quedlinburg to Orange (Texas) | 5,190.67 mi (8,353.57 km) |
| Quedlinburg to Orange City (Florida) | 4,772.54 mi (7,680.66 km) |
| Quedlinburg to Orangeburg (South Carolina) | 4,522.18 mi (7,277.75 km) |
