| Adendorf to Olympia Heights (Florida) | 4,842.89 mi (7,793.88 km) |
| Adendorf to Omaha (Nebraska) | 4,584.96 mi (7,378.78 km) |
| Adendorf to On Top of the World Designated Place (Florida) | 4,739.37 mi (7,627.28 km) |
| Adendorf to Onalaska (Wisconsin) | 4,287.46 mi (6,900.00 km) |
| Adendorf to Oneida (New York) | 3,783.14 mi (6,088.38 km) |
| Adendorf to Oneonta (New York) | 3,790.48 mi (6,100.19 km) |
| Adendorf to Ontario (California) | 5,649.10 mi (9,091.35 km) |
| Adendorf to Ontario (Oregon) | 5,029.41 mi (8,094.05 km) |
| Adendorf to Opa-locka (Florida) | 4,830.22 mi (7,773.48 km) |
| Adendorf to Opelika (Alabama) | 4,668.86 mi (7,513.81 km) |
| Adendorf to Opelousas (Louisiana) | 5,031.25 mi (8,097.02 km) |
| Adendorf to Orange (California) | 5,669.29 mi (9,123.83 km) |
| Adendorf to Orange (Texas) | 5,114.14 mi (8,230.41 km) |
| Adendorf to Orange City (Florida) | 4,709.66 mi (7,579.46 km) |
| Adendorf to Orangeburg (South Carolina) | 4,454.86 mi (7,169.40 km) |
