| Castalla to Ukiah (California) | 5,949.77 mi (9,575.23 km) |
| Castalla to Union (Missouri) | 4,656.46 mi (7,493.85 km) |
| Castalla to Union City (California) | 5,986.53 mi (9,634.38 km) |
| Castalla to Union City (Georgia) | 4,526.71 mi (7,285.03 km) |
| Castalla to Union City (New Jersey) | 3,784.31 mi (6,090.26 km) |
| Castalla to Union City (Tennessee) | 4,639.94 mi (7,467.26 km) |
| Castalla to Union Hill-Novelty Hill (Washington) | 5,472.02 mi (8,806.36 km) |
| Castalla to Union Park (Florida) | 4,542.43 mi (7,310.34 km) |
| Castalla to Uniondale (New York) | 3,764.67 mi (6,058.65 km) |
| Castalla to Universal City (Texas) | 5,351.10 mi (8,611.76 km) |
| Castalla to University (Florida) | 4,622.02 mi (7,438.42 km) |
| Castalla to University City (Missouri) | 4,617.89 mi (7,431.78 km) |
| Castalla to University Heights (Ohio) | 4,116.88 mi (6,625.48 km) |
| Castalla to University of California-Santa Barbara (California) | 6,067.26 mi (9,764.31 km) |
| Castalla to University Park (Texas) | 5,142.81 mi (8,276.55 km) |
