| Allentown to Kinston (North Carolina) | 385.33 mi (620.13 km) |
| Allentown to Kirkland (Washington) | 2,331.19 mi (3,751.68 km) |
| Allentown to Kirksville (Missouri) | 898.77 mi (1,446.44 km) |
| Allentown to Kirkwood (Missouri) | 806.84 mi (1,298.49 km) |
| Allentown to Kiryas Joel (New York) | 85.51 mi (137.62 km) |
| Allentown to Kissimmee (Florida) | 913.67 mi (1,470.41 km) |
| Allentown to Klamath Falls (Oregon) | 2,372.18 mi (3,817.65 km) |
| Allentown to Knightdale (North Carolina) | 370.25 mi (595.86 km) |
| Allentown to Knik-Fairview (Alaska) | 3,307.35 mi (5,322.67 km) |
| Allentown to Knoxville (Tennessee) | 559.42 mi (900.30 km) |
| Allentown to Kokomo (Indiana) | 559.13 mi (899.84 km) |
| Allentown to Kuna (Idaho) | 2,087.87 mi (3,360.11 km) |
| Allentown to Kyle (Texas) | 1,454.46 mi (2,340.73 km) |
| Allentown to La Cañada Flintridge (California) | 2,362.48 mi (3,802.05 km) |
| Allentown to La Crescenta-Montrose (California) | 2,363.70 mi (3,804.01 km) |
