| Haacht to Olympia Heights (Florida) | 4,645.83 mi (7,476.74 km) |
| Haacht to Omaha (Nebraska) | 4,482.52 mi (7,213.91 km) |
| Haacht to On Top of the World Designated Place (Florida) | 4,557.20 mi (7,334.10 km) |
| Haacht to Onalaska (Wisconsin) | 4,180.37 mi (6,727.66 km) |
| Haacht to Oneida (New York) | 3,630.73 mi (5,843.09 km) |
| Haacht to Oneonta (New York) | 3,633.98 mi (5,848.32 km) |
| Haacht to Ontario (California) | 5,596.26 mi (9,006.31 km) |
| Haacht to Ontario (Oregon) | 5,001.34 mi (8,048.87 km) |
| Haacht to Opa-locka (Florida) | 4,633.39 mi (7,456.72 km) |
| Haacht to Opelika (Alabama) | 4,506.27 mi (7,252.14 km) |
| Haacht to Opelousas (Louisiana) | 4,882.27 mi (7,857.26 km) |
| Haacht to Orange (California) | 5,616.62 mi (9,039.08 km) |
| Haacht to Orange (Texas) | 4,969.19 mi (7,997.13 km) |
| Haacht to Orange City (Florida) | 4,524.17 mi (7,280.94 km) |
| Haacht to Orangeburg (South Carolina) | 4,281.99 mi (6,891.20 km) |
