| Allentown to University Place (Washington) | 2,350.46 mi (3,782.69 km) |
| Allentown to Upland (California) | 2,336.74 mi (3,760.62 km) |
| Allentown to Upper Arlington (Ohio) | 401.94 mi (646.86 km) |
| Allentown to Upper Grand Lagoon (Florida) | 922.38 mi (1,484.43 km) |
| Allentown to Upper Montclair (New Jersey) | 68.92 mi (110.91 km) |
| Allentown to Urbana (Illinois) | 670.10 mi (1,078.42 km) |
| Allentown to Urbana (Maryland) | 132.12 mi (212.62 km) |
| Allentown to Urbana (Ohio) | 437.04 mi (703.34 km) |
| Allentown to Urbandale (Iowa) | 953.77 mi (1,534.94 km) |
| Allentown to Utica (New York) | 173.22 mi (278.77 km) |
| Allentown to Uvalde (Texas) | 1,577.92 mi (2,539.41 km) |
| Allentown to Vacaville (California) | 2,455.35 mi (3,951.50 km) |
| Allentown to Vadnais Heights (Minnesota) | 941.28 mi (1,514.84 km) |
| Allentown to Vail (Arizona) | 2,033.17 mi (3,272.08 km) |
| Allentown to Valdosta (Georgia) | 802.33 mi (1,291.23 km) |
