| Altadena to University Place (Washington) | 928.53 mi (1,494.32 km) |
| Altadena to Upland (California) | 27.60 mi (44.42 km) |
| Altadena to Upper Arlington (Ohio) | 1,960.44 mi (3,155.02 km) |
| Altadena to Upper Grand Lagoon (Florida) | 1,906.55 mi (3,068.30 km) |
| Altadena to Upper Montclair (New Jersey) | 2,425.17 mi (3,902.93 km) |
| Altadena to Urbana (Illinois) | 1,689.90 mi (2,719.64 km) |
| Altadena to Urbana (Maryland) | 2,266.30 mi (3,647.26 km) |
| Altadena to Urbana (Ohio) | 1,924.38 mi (3,096.99 km) |
| Altadena to Urbandale (Iowa) | 1,417.66 mi (2,281.51 km) |
| Altadena to Utica (New York) | 2,368.15 mi (3,811.17 km) |
| Altadena to Uvalde (Texas) | 1,130.60 mi (1,819.53 km) |
| Altadena to Vacaville (California) | 358.29 mi (576.61 km) |
| Altadena to Vadnais Heights (Minnesota) | 1,521.22 mi (2,448.16 km) |
| Altadena to Vail (Arizona) | 455.89 mi (733.68 km) |
| Altadena to Valdosta (Georgia) | 2,033.88 mi (3,273.22 km) |
