| Sluis to Ukiah (California) | 5,406.26 mi (8,700.54 km) |
| Sluis to Union (Missouri) | 4,380.07 mi (7,049.03 km) |
| Sluis to Union City (California) | 5,464.29 mi (8,793.93 km) |
| Sluis to Union City (Georgia) | 4,368.35 mi (7,030.19 km) |
| Sluis to Union City (New Jersey) | 3,607.18 mi (5,805.20 km) |
| Sluis to Union City (Tennessee) | 4,405.48 mi (7,089.93 km) |
| Sluis to Union Hill-Novelty Hill (Washington) | 4,873.62 mi (7,843.33 km) |
| Sluis to Union Park (Florida) | 4,482.05 mi (7,213.16 km) |
| Sluis to Uniondale (New York) | 3,591.67 mi (5,780.24 km) |
| Sluis to Universal City (Texas) | 5,116.57 mi (8,234.32 km) |
| Sluis to University (Florida) | 4,556.56 mi (7,333.08 km) |
| Sluis to University City (Missouri) | 4,343.94 mi (6,990.89 km) |
| Sluis to University Heights (Ohio) | 3,872.12 mi (6,231.57 km) |
| Sluis to University of California-Santa Barbara (California) | 5,588.55 mi (8,993.90 km) |
| Sluis to University Park (Texas) | 4,884.63 mi (7,861.05 km) |
