| Osterode to Olympia Heights (Florida) | 4,866.07 mi (7,831.18 km) |
| Osterode to Omaha (Nebraska) | 4,645.03 mi (7,475.46 km) |
| Osterode to On Top of the World Designated Place (Florida) | 4,769.37 mi (7,675.56 km) |
| Osterode to Onalaska (Wisconsin) | 4,345.83 mi (6,993.93 km) |
| Osterode to Oneida (New York) | 3,824.94 mi (6,155.65 km) |
| Osterode to Oneonta (New York) | 3,830.68 mi (6,164.89 km) |
| Osterode to Ontario (California) | 5,724.38 mi (9,212.50 km) |
| Osterode to Ontario (Oregon) | 5,110.65 mi (8,224.79 km) |
| Osterode to Opa-locka (Florida) | 4,853.50 mi (7,810.95 km) |
| Osterode to Opelika (Alabama) | 4,707.17 mi (7,575.45 km) |
| Osterode to Opelousas (Louisiana) | 5,075.16 mi (8,167.68 km) |
| Osterode to Orange (California) | 5,744.62 mi (9,245.08 km) |
| Osterode to Orange (Texas) | 5,159.63 mi (8,303.62 km) |
| Osterode to Orange City (Florida) | 4,738.15 mi (7,625.32 km) |
| Osterode to Orangeburg (South Carolina) | 4,488.76 mi (7,223.96 km) |
