| Mountain Ash to University Place (Washington) | 4,715.66 mi (7,589.12 km) |
| Mountain Ash to Upland (California) | 5,303.80 mi (8,535.64 km) |
| Mountain Ash to Upper Arlington (Ohio) | 3,722.32 mi (5,990.50 km) |
| Mountain Ash to Upper Grand Lagoon (Florida) | 4,301.38 mi (6,922.40 km) |
| Mountain Ash to Upper Montclair (New Jersey) | 3,326.76 mi (5,353.91 km) |
| Mountain Ash to Urbana (Illinois) | 3,920.99 mi (6,310.23 km) |
| Mountain Ash to Urbana (Maryland) | 3,521.71 mi (5,667.64 km) |
| Mountain Ash to Urbana (Ohio) | 3,745.91 mi (6,028.46 km) |
| Mountain Ash to Urbandale (Iowa) | 4,062.59 mi (6,538.10 km) |
| Mountain Ash to Utica (New York) | 3,273.82 mi (5,268.70 km) |
| Mountain Ash to Uvalde (Texas) | 4,917.92 mi (7,914.62 km) |
| Mountain Ash to Vacaville (California) | 5,200.73 mi (8,369.77 km) |
| Mountain Ash to Vadnais Heights (Minnesota) | 3,876.55 mi (6,238.71 km) |
| Mountain Ash to Vail (Arizona) | 5,178.97 mi (8,334.74 km) |
| Mountain Ash to Valdosta (Georgia) | 4,165.32 mi (6,703.44 km) |
