| Key West to Ukiah (California) | 2,604.58 mi (4,191.66 km) |
| Key West to Union (Missouri) | 1,100.27 mi (1,770.72 km) |
| Key West to Union City (California) | 2,523.02 mi (4,060.41 km) |
| Key West to Union City (Georgia) | 646.10 mi (1,039.79 km) |
| Key West to Union City (New Jersey) | 1,205.48 mi (1,940.04 km) |
| Key West to Union City (Tennessee) | 926.11 mi (1,490.42 km) |
| Key West to Union Hill-Novelty Hill (Washington) | 2,709.80 mi (4,361.00 km) |
| Key West to Union Park (Florida) | 278.50 mi (448.20 km) |
| Key West to Uniondale (New York) | 1,211.96 mi (1,950.46 km) |
| Key West to Universal City (Texas) | 1,072.66 mi (1,726.28 km) |
| Key West to University (Florida) | 246.09 mi (396.05 km) |
| Key West to University City (Missouri) | 1,095.33 mi (1,762.76 km) |
| Key West to University Heights (Ohio) | 1,169.87 mi (1,882.73 km) |
| Key West to University of California-Santa Barbara (California) | 2,373.68 mi (3,820.06 km) |
| Key West to University Park (Texas) | 1,073.33 mi (1,727.35 km) |
