| Birsfelden to Kinston (North Carolina) | 4,272.09 mi (6,875.26 km) |
| Birsfelden to Kirkland (Washington) | 5,198.43 mi (8,366.06 km) |
| Birsfelden to Kirksville (Missouri) | 4,653.87 mi (7,489.68 km) |
| Birsfelden to Kirkwood (Missouri) | 4,648.18 mi (7,480.53 km) |
| Birsfelden to Kiryas Joel (New York) | 3,866.44 mi (6,222.44 km) |
| Birsfelden to Kissimmee (Florida) | 4,761.23 mi (7,662.45 km) |
| Birsfelden to Klamath Falls (Oregon) | 5,507.50 mi (8,863.47 km) |
| Birsfelden to Knightdale (North Carolina) | 4,287.71 mi (6,900.40 km) |
| Birsfelden to Knik-Fairview (Alaska) | 4,795.95 mi (7,718.34 km) |
| Birsfelden to Knoxville (Tennessee) | 4,509.40 mi (7,257.18 km) |
| Birsfelden to Kokomo (Indiana) | 4,391.45 mi (7,067.36 km) |
| Birsfelden to Kuna (Idaho) | 5,283.79 mi (8,503.44 km) |
| Birsfelden to Kyle (Texas) | 5,370.35 mi (8,642.74 km) |
| Birsfelden to La Cañada Flintridge (California) | 5,868.80 mi (9,444.91 km) |
| Birsfelden to La Crescenta-Montrose (California) | 5,868.60 mi (9,444.60 km) |
