| Rancho San Diego to Ukiah (California) | 563.90 mi (907.51 km) |
| Rancho San Diego to Union (Missouri) | 1,502.87 mi (2,418.63 km) |
| Rancho San Diego to Union City (California) | 441.16 mi (709.98 km) |
| Rancho San Diego to Union City (Georgia) | 1,864.41 mi (3,000.47 km) |
| Rancho San Diego to Union City (New Jersey) | 2,412.33 mi (3,882.27 km) |
| Rancho San Diego to Union City (Tennessee) | 1,599.68 mi (2,574.43 km) |
| Rancho San Diego to Union Hill-Novelty Hill (Washington) | 1,064.66 mi (1,713.41 km) |
| Rancho San Diego to Union Park (Florida) | 2,130.46 mi (3,428.65 km) |
| Rancho San Diego to Uniondale (New York) | 2,435.29 mi (3,919.22 km) |
| Rancho San Diego to Universal City (Texas) | 1,121.04 mi (1,804.14 km) |
| Rancho San Diego to University (Florida) | 2,070.87 mi (3,332.75 km) |
| Rancho San Diego to University City (Missouri) | 1,540.26 mi (2,478.81 km) |
| Rancho San Diego to University Heights (Ohio) | 2,024.50 mi (3,258.12 km) |
| Rancho San Diego to University of California-Santa Barbara (California) | 203.99 mi (328.29 km) |
| Rancho San Diego to University Park (Texas) | 1,167.02 mi (1,878.14 km) |
