| Osterburg to Olympia Heights (Florida) | 4,905.38 mi (7,894.44 km) |
| Osterburg to Omaha (Nebraska) | 4,649.26 mi (7,482.26 km) |
| Osterburg to On Top of the World Designated Place (Florida) | 4,802.81 mi (7,729.38 km) |
| Osterburg to Onalaska (Wisconsin) | 4,351.90 mi (7,003.70 km) |
| Osterburg to Oneida (New York) | 3,847.61 mi (6,192.13 km) |
| Osterburg to Oneonta (New York) | 3,854.85 mi (6,203.78 km) |
| Osterburg to Ontario (California) | 5,710.98 mi (9,190.93 km) |
| Osterburg to Ontario (Oregon) | 5,089.61 mi (8,190.94 km) |
| Osterburg to Opa-locka (Florida) | 4,892.71 mi (7,874.06 km) |
| Osterburg to Opelika (Alabama) | 4,733.12 mi (7,617.22 km) |
| Osterburg to Opelousas (Louisiana) | 5,095.84 mi (8,200.96 km) |
| Osterburg to Orange (California) | 5,731.15 mi (9,223.39 km) |
| Osterburg to Orange (Texas) | 5,178.78 mi (8,334.44 km) |
| Osterburg to Orange City (Florida) | 4,772.90 mi (7,681.25 km) |
| Osterburg to Orangeburg (South Carolina) | 4,518.73 mi (7,272.19 km) |
