| Allentown to Isny im Allgau | 4,047.98 mi (6,514.60 km) |
| Allentown to Isselburg | 3,781.73 mi (6,086.10 km) |
| Allentown to Issum | 3,787.98 mi (6,096.17 km) |
| Allentown to Itzehoe | 3,841.55 mi (6,182.37 km) |
| Allentown to Jena | 4,008.35 mi (6,450.81 km) |
| Allentown to Jever | 3,790.37 mi (6,100.00 km) |
| Allentown to Jork | 3,858.59 mi (6,209.80 km) |
| Allentown to Juchen | 3,803.04 mi (6,120.40 km) |
| Allentown to Julich | 3,802.24 mi (6,119.12 km) |
| Allentown to Juterbog | 4,032.32 mi (6,489.39 km) |
| Allentown to Kaarst | 3,804.43 mi (6,122.64 km) |
| Allentown to Kaiserslautern | 3,901.19 mi (6,278.37 km) |
| Allentown to Kalkar | 3,777.41 mi (6,079.15 km) |
| Allentown to Kall | 3,820.24 mi (6,148.08 km) |
| Allentown to Kaltenkirchen | 3,860.47 mi (6,212.82 km) |
