| Montecatini Terme to Kinston (North Carolina) | 4,515.13 mi (7,266.39 km) |
| Montecatini Terme to Kirkland (Washington) | 5,493.95 mi (8,841.67 km) |
| Montecatini Terme to Kirksville (Missouri) | 4,927.54 mi (7,930.11 km) |
| Montecatini Terme to Kirkwood (Missouri) | 4,916.77 mi (7,912.78 km) |
| Montecatini Terme to Kiryas Joel (New York) | 4,119.83 mi (6,630.23 km) |
| Montecatini Terme to Kissimmee (Florida) | 4,993.73 mi (8,036.62 km) |
| Montecatini Terme to Klamath Falls (Oregon) | 5,802.49 mi (9,338.20 km) |
| Montecatini Terme to Knightdale (North Carolina) | 4,533.54 mi (7,296.03 km) |
| Montecatini Terme to Knik-Fairview (Alaska) | 5,072.91 mi (8,164.06 km) |
| Montecatini Terme to Knoxville (Tennessee) | 4,764.18 mi (7,667.21 km) |
| Montecatini Terme to Kokomo (Indiana) | 4,658.20 mi (7,496.65 km) |
| Montecatini Terme to Kuna (Idaho) | 5,577.64 mi (8,976.35 km) |
| Montecatini Terme to Kyle (Texas) | 5,635.01 mi (9,068.67 km) |
| Montecatini Terme to La Cañada Flintridge (California) | 6,159.62 mi (9,912.96 km) |
| Montecatini Terme to La Crescenta-Montrose (California) | 6,159.46 mi (9,912.69 km) |
