| Boadilla del Monte to Kinston (North Carolina) | 3,919.50 mi (6,307.82 km) |
| Boadilla del Monte to Kirkland (Washington) | 5,274.41 mi (8,488.35 km) |
| Boadilla del Monte to Kirksville (Missouri) | 4,451.85 mi (7,164.57 km) |
| Boadilla del Monte to Kirkwood (Missouri) | 4,414.40 mi (7,104.29 km) |
| Boadilla del Monte to Kiryas Joel (New York) | 3,566.14 mi (5,739.15 km) |
| Boadilla del Monte to Kissimmee (Florida) | 4,361.82 mi (7,019.66 km) |
| Boadilla del Monte to Klamath Falls (Oregon) | 5,535.28 mi (8,908.18 km) |
| Boadilla del Monte to Knightdale (North Carolina) | 3,946.55 mi (6,351.36 km) |
| Boadilla del Monte to Knik-Fairview (Alaska) | 5,138.36 mi (8,269.39 km) |
| Boadilla del Monte to Knoxville (Tennessee) | 4,204.99 mi (6,767.27 km) |
| Boadilla del Monte to Kokomo (Indiana) | 4,151.24 mi (6,680.77 km) |
| Boadilla del Monte to Kuna (Idaho) | 5,281.25 mi (8,499.35 km) |
| Boadilla del Monte to Kyle (Texas) | 5,103.51 mi (8,213.30 km) |
| Boadilla del Monte to La Cañada Flintridge (California) | 5,801.76 mi (9,337.03 km) |
| Boadilla del Monte to La Crescenta-Montrose (California) | 5,802.05 mi (9,337.49 km) |
