| Castel Gandolfo to Kinston (North Carolina) | 4,667.12 mi (7,511.00 km) |
| Castel Gandolfo to Kirkland (Washington) | 5,669.31 mi (9,123.88 km) |
| Castel Gandolfo to Kirksville (Missouri) | 5,094.58 mi (8,198.93 km) |
| Castel Gandolfo to Kirkwood (Missouri) | 5,081.35 mi (8,177.64 km) |
| Castel Gandolfo to Kiryas Joel (New York) | 4,277.37 mi (6,883.76 km) |
| Castel Gandolfo to Kissimmee (Florida) | 5,139.80 mi (8,271.71 km) |
| Castel Gandolfo to Klamath Falls (Oregon) | 5,978.16 mi (9,620.92 km) |
| Castel Gandolfo to Knightdale (North Carolina) | 4,686.95 mi (7,542.91 km) |
| Castel Gandolfo to Knik-Fairview (Alaska) | 5,233.71 mi (8,422.85 km) |
| Castel Gandolfo to Knoxville (Tennessee) | 4,921.96 mi (7,921.13 km) |
| Castel Gandolfo to Kokomo (Indiana) | 4,821.99 mi (7,760.24 km) |
| Castel Gandolfo to Kuna (Idaho) | 5,753.17 mi (9,258.83 km) |
| Castel Gandolfo to Kyle (Texas) | 5,797.33 mi (9,329.90 km) |
| Castel Gandolfo to La Cañada Flintridge (California) | 6,334.16 mi (10,193.85 km) |
| Castel Gandolfo to La Crescenta-Montrose (California) | 6,334.01 mi (10,193.61 km) |
