| Allentown to Ukiah (California) | 2,501.85 mi (4,026.34 km) |
| Allentown to Union (Missouri) | 839.22 mi (1,350.59 km) |
| Allentown to Union City (California) | 2,475.09 mi (3,983.27 km) |
| Allentown to Union City (Georgia) | 695.57 mi (1,119.41 km) |
| Allentown to Union City (New Jersey) | 76.54 mi (123.19 km) |
| Allentown to Union City (Tennessee) | 787.22 mi (1,266.90 km) |
| Allentown to Union Hill-Novelty Hill (Washington) | 2,323.10 mi (3,738.66 km) |
| Allentown to Union Park (Florida) | 892.92 mi (1,437.01 km) |
| Allentown to Uniondale (New York) | 98.94 mi (159.23 km) |
| Allentown to Universal City (Texas) | 1,492.96 mi (2,402.68 km) |
| Allentown to University (Florida) | 950.90 mi (1,530.32 km) |
| Allentown to University City (Missouri) | 800.70 mi (1,288.61 km) |
| Allentown to University Heights (Ohio) | 321.73 mi (517.77 km) |
| Allentown to University of California-Santa Barbara (California) | 2,443.54 mi (3,932.49 km) |
| Allentown to University Park (Texas) | 1,291.81 mi (2,078.96 km) |
