| Taastrup to Olympia Heights (Florida) | 4,866.32 mi (7,831.58 km) |
| Taastrup to Omaha (Nebraska) | 4,541.89 mi (7,309.46 km) |
| Taastrup to On Top of the World Designated Place (Florida) | 4,751.30 mi (7,646.47 km) |
| Taastrup to Onalaska (Wisconsin) | 4,248.27 mi (6,836.93 km) |
| Taastrup to Oneida (New York) | 3,776.15 mi (6,077.13 km) |
| Taastrup to Oneonta (New York) | 3,786.37 mi (6,093.57 km) |
| Taastrup to Ontario (California) | 5,573.51 mi (8,969.69 km) |
| Taastrup to Ontario (Oregon) | 4,941.67 mi (7,952.84 km) |
| Taastrup to Opa-locka (Florida) | 4,853.48 mi (7,810.92 km) |
| Taastrup to Opelika (Alabama) | 4,666.31 mi (7,509.69 km) |
| Taastrup to Opelousas (Louisiana) | 5,017.93 mi (8,075.59 km) |
| Taastrup to Orange (California) | 5,593.54 mi (9,001.94 km) |
| Taastrup to Orange (Texas) | 5,097.77 mi (8,204.06 km) |
| Taastrup to Orange City (Florida) | 4,724.23 mi (7,602.92 km) |
| Taastrup to Orangeburg (South Carolina) | 4,460.52 mi (7,178.51 km) |
