| Houthulst to Ukiah (California) | 5,411.79 mi (8,709.43 km) |
| Houthulst to Union (Missouri) | 4,374.64 mi (7,040.31 km) |
| Houthulst to Union City (California) | 5,468.99 mi (8,801.49 km) |
| Houthulst to Union City (Georgia) | 4,358.96 mi (7,015.07 km) |
| Houthulst to Union City (New Jersey) | 3,597.58 mi (5,789.74 km) |
| Houthulst to Union City (Tennessee) | 4,398.64 mi (7,078.93 km) |
| Houthulst to Union Hill-Novelty Hill (Washington) | 4,881.12 mi (7,855.41 km) |
| Houthulst to Union Park (Florida) | 4,469.69 mi (7,193.27 km) |
| Houthulst to Uniondale (New York) | 3,581.92 mi (5,764.54 km) |
| Houthulst to Universal City (Texas) | 5,110.36 mi (8,224.33 km) |
| Houthulst to University (Florida) | 4,544.42 mi (7,313.54 km) |
| Houthulst to University City (Missouri) | 4,338.40 mi (6,981.97 km) |
| Houthulst to University Heights (Ohio) | 3,865.08 mi (6,220.25 km) |
| Houthulst to University of California-Santa Barbara (California) | 5,591.60 mi (8,998.81 km) |
| Houthulst to University Park (Texas) | 4,879.04 mi (7,852.05 km) |
